TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Luković, Miloljub
AU  - Labus, Nebojša J.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1348
AB  - Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2, mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 mu m) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600 degrees C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50 degrees C in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 M Omega (60 mu m), from 23.4 to 0.25 M Omega (48 mu m) and from 6.8 to 0.02 M Omega (36 mu m) at 25 degrees C, while at 50 degrees C and also 100 Hz it reduced from 14 M Omega to 0.72 \text{M}\Omega (48 mu m) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.
PB  - Institute of Electrical and Electronics Engineers Inc.
T2  - IEEE Sensors Journal
T1  - Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material
EP  - 7516
IS  - 14
SP  - 7509
VL  - 20
DO  - 10.1109/JSEN.2020.2983135
ER  - 

@article{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Z and Luković, Miloljub and Labus, Nebojša J.",
year = "2020",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2, mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 mu m) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600 degrees C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50 degrees C in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 M Omega (60 mu m), from 23.4 to 0.25 M Omega (48 mu m) and from 6.8 to 0.02 M Omega (36 mu m) at 25 degrees C, while at 50 degrees C and also 100 Hz it reduced from 14 M Omega to 0.72 \text{M}\Omega (48 mu m) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
journal = "IEEE Sensors Journal",
title = "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material",
pages = "7516-7509",
number = "14",
volume = "20",
doi = "10.1109/JSEN.2020.2983135"
}

Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Z., Luković, M.,& Labus, N. J.. (2020). Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal
Institute of Electrical and Electronics Engineers Inc.., 20(14), 7509-7516.
https://doi.org/10.1109/JSEN.2020.2983135

Nikolić MV, Dojčinović M, Vasiljević ZZ, Luković M, Labus NJ. Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal. 2020;20(14):7509-7516.
doi:10.1109/JSEN.2020.2983135 .

Nikolić, Maria Vesna, Dojčinović, Milena, Vasiljević, Zorka Z, Luković, Miloljub, Labus, Nebojša J., "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material" in IEEE Sensors Journal, 20, no. 14 (2020):7509-7516,
https://doi.org/10.1109/JSEN.2020.2983135 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav B.
AU  - Labus, Nebojša J.
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad B.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1349
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite, Ia (3) over bar) crystal structure was obtained by a solid state reaction. Thick film paste (powder + organic vehicles) was screen printed on alumina substrate with test interdigitated PdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) was determined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable pore system. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of the thick film compared to powder. Impedance response of the thick film sensor was monitored in a humidity chamber in the relative humidity (RH) range 30-90%, at room temperature (25 degrees C) and frequency range from 42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 M Omega for RH 30% to 0.68 M Omega for RH 90%. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The sensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% was obtained.
PB  - Elsevier, Amsterdam
T2  - Materials Science and Engineering B-Advanced Functional Solid-State Materials
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
ER  - 

@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav B. and Labus, Nebojša J. and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad B.",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite, Ia (3) over bar) crystal structure was obtained by a solid state reaction. Thick film paste (powder + organic vehicles) was screen printed on alumina substrate with test interdigitated PdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) was determined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable pore system. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of the thick film compared to powder. Impedance response of the thick film sensor was monitored in a humidity chamber in the relative humidity (RH) range 30-90%, at room temperature (25 degrees C) and frequency range from 42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 M Omega for RH 30% to 0.68 M Omega for RH 90%. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The sensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% was obtained.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Science and Engineering B-Advanced Functional Solid-State Materials",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
volume = "257",
doi = "10.1016/j.mseb.2020.114547"
}

Nikolić, M. V., Krstić, J. B., Labus, N. J., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. B.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B-Advanced Functional Solid-State Materials
Elsevier, Amsterdam., 257.
https://doi.org/10.1016/j.mseb.2020.114547

Nikolić MV, Krstić JB, Labus NJ, Luković M, Dojčinović M, Radovanović M, Tadić NB. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B-Advanced Functional Solid-State Materials. 2020;257.
doi:10.1016/j.mseb.2020.114547 .

Nikolić, Maria Vesna, Krstić, Jugoslav B., Labus, Nebojša J., Luković, Miloljub, Dojčinović, Milena, Radovanović, Milan, Tadić, Nenad B., "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B-Advanced Functional Solid-State Materials, 257 (2020),
https://doi.org/10.1016/j.mseb.2020.114547 . .

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Labus, Nebojša J.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1268
AB  - Iron manganite (FeMnO3) thick film samples were obtained by screen printing four layers of thick film paste on alumina substrate with test PdAg electrodes. The paste was made by adding organic vehicles to iron manganite powder obtained by solid state synthesis of starting hematite (alpha-Fe2O3) and manganese carbonate (MnCO3) powders. SEM analysis of the sample surface revealed a porous structure with a uniform particle size distribution. The average resulting film thickness was 48. m. The change of impedance was monitored in a humidity chamber in the relative humidity range 30.90% at three working temperatures: 25, 50 and 75 degrees C in the frequency range 42 Hz to 1 MHz. With increase in relative humidity the measured impedance decreased, showing the greatest difference at lower frequency with a low time delay (below 3%) between absorption and desorption processes (hysteresis). The sensor response and recovery times were several seconds.
PB  - IEEE Computer Society
C3  - Proceedings of the International Spring Seminar on Electronics Technology
T1  - Application of Iron Manganite Thick Films for Humidity Sensing
VL  - 2019-May
DO  - 10.1109/ISSE.2019.8810291
ER  - 

@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub and Dojčinović, Milena and Vasiljević, Zorka Z and Labus, Nebojša J.",
year = "2019",
abstract = "Iron manganite (FeMnO3) thick film samples were obtained by screen printing four layers of thick film paste on alumina substrate with test PdAg electrodes. The paste was made by adding organic vehicles to iron manganite powder obtained by solid state synthesis of starting hematite (alpha-Fe2O3) and manganese carbonate (MnCO3) powders. SEM analysis of the sample surface revealed a porous structure with a uniform particle size distribution. The average resulting film thickness was 48. m. The change of impedance was monitored in a humidity chamber in the relative humidity range 30.90% at three working temperatures: 25, 50 and 75 degrees C in the frequency range 42 Hz to 1 MHz. With increase in relative humidity the measured impedance decreased, showing the greatest difference at lower frequency with a low time delay (below 3%) between absorption and desorption processes (hysteresis). The sensor response and recovery times were several seconds.",
publisher = "IEEE Computer Society",
journal = "Proceedings of the International Spring Seminar on Electronics Technology",
title = "Application of Iron Manganite Thick Films for Humidity Sensing",
volume = "2019-May",
doi = "10.1109/ISSE.2019.8810291"
}

Nikolić, M. V., Luković, M., Dojčinović, M., Vasiljević, Z. Z.,& Labus, N. J.. (2019). Application of Iron Manganite Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology
IEEE Computer Society., 2019-May.
https://doi.org/10.1109/ISSE.2019.8810291

Nikolić MV, Luković M, Dojčinović M, Vasiljević ZZ, Labus NJ. Application of Iron Manganite Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology. 2019;2019-May.
doi:10.1109/ISSE.2019.8810291 .

Nikolić, Maria Vesna, Luković, Miloljub, Dojčinović, Milena, Vasiljević, Zorka Z, Labus, Nebojša J., "Application of Iron Manganite Thick Films for Humidity Sensing" in Proceedings of the International Spring Seminar on Electronics Technology, 2019-May (2019),
https://doi.org/10.1109/ISSE.2019.8810291 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Z
AU  - Luković, Miloljub
AU  - Pavlović, Vera P.
AU  - Krstic, Jugoslav B.
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1261
AB  - Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy confirmed the formation of nanocrystalline zinc-ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30%-90% in the frequency range 42 Hz-1 MHz at room temperature (25 degrees C) and 50 degrees C. At 42 Hz at both analyzed temperatures the impedance reduced 46 times in the humidity range 30%-90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.
PB  - Wiley, Hoboken
T2  - International Journal of Applied Ceramic Technology
T1  - Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen-printed thick films for application in humidity sensing
EP  - 993
IS  - 3
SP  - 981
VL  - 16
DO  - 10.1111/ijac.13190
ER  - 

@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Z and Luković, Miloljub and Pavlović, Vera P. and Krstic, Jugoslav B. and Vujančević, Jelena and Tadić, Nenad B. and Vlahović, Branislav and Pavlović, Vladimir B",
year = "2019",
abstract = "Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy confirmed the formation of nanocrystalline zinc-ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30%-90% in the frequency range 42 Hz-1 MHz at room temperature (25 degrees C) and 50 degrees C. At 42 Hz at both analyzed temperatures the impedance reduced 46 times in the humidity range 30%-90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.",
publisher = "Wiley, Hoboken",
journal = "International Journal of Applied Ceramic Technology",
title = "Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen-printed thick films for application in humidity sensing",
pages = "993-981",
number = "3",
volume = "16",
doi = "10.1111/ijac.13190"
}

Nikolić, M. V., Vasiljević, Z. Z., Luković, M., Pavlović, V. P., Krstic, J. B., Vujančević, J., Tadić, N. B., Vlahović, B.,& Pavlović, V. B.. (2019). Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen-printed thick films for application in humidity sensing. in International Journal of Applied Ceramic Technology
Wiley, Hoboken., 16(3), 981-993.
https://doi.org/10.1111/ijac.13190

Nikolić MV, Vasiljević ZZ, Luković M, Pavlović VP, Krstic JB, Vujančević J, Tadić NB, Vlahović B, Pavlović VB. Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen-printed thick films for application in humidity sensing. in International Journal of Applied Ceramic Technology. 2019;16(3):981-993.
doi:10.1111/ijac.13190 .

Nikolić, Maria Vesna, Vasiljević, Zorka Z, Luković, Miloljub, Pavlović, Vera P., Krstic, Jugoslav B., Vujančević, Jelena, Tadić, Nenad B., Vlahović, Branislav, Pavlović, Vladimir B, "Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen-printed thick films for application in humidity sensing" in International Journal of Applied Ceramic Technology, 16, no. 3 (2019):981-993,
https://doi.org/10.1111/ijac.13190 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Labus, Nebojša J.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1211
AB  - Bulk samples of iron manganite with a cubic Ia3 lt mml:mo stretchy="false"> lt overbar> lt /mml:mover> crystal structure were obtained by solid state synthesis (combination of milling and calcination) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders followed by sintering green samples at 1000 degrees C for 4h. Structural characterization performed by XRD and SEM analysis confirmed the formation of iron manganite in the form of a porous network of grains and pores with average particle size of 530 and 430nm, respectively. The influence of humidity on complex impedance and dielectric properties was monitored in the relative humidity range 30-90% in a climatic chamber in the frequency range 42Hz-1MHz at working temperatures of 25 and 50 degrees C. At the lowest frequency of 42Hz the impedance reduced with relative humidity from 57.9 (RH 30%) to 3.21M ohm (RH 90%) at 25 degrees C, and from 23.3 (RH 30%) to 1.3M ohm (RH 90%) at 50 degrees C that is approximately 20 times. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The influence of grains (bulk) was taken into account for higher relative humidity values (70% at 25 degrees C and 60% at 50 degrees C) that is related to the mechanism of water interaction with the sample surface. The dielectric constant and loss tangent decreased with increase in frequency in accordance with the Maxwell-Wagner type interfacial polarization mechanism and also increased with increase in relative humidity.
PB  - Springer, Dordrecht
T2  - Journal of Materials Science-Materials in Electronics
T1  - Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3)
EP  - 12405
IS  - 13
SP  - 12399
VL  - 30
DO  - 10.1007/s10854-019-01598-1
ER  - 

@article{
author = "Nikolić, Maria Vesna and Luković, Miloljub and Labus, Nebojša J.",
year = "2019",
abstract = "Bulk samples of iron manganite with a cubic Ia3 lt mml:mo stretchy="false"> lt overbar> lt /mml:mover> crystal structure were obtained by solid state synthesis (combination of milling and calcination) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders followed by sintering green samples at 1000 degrees C for 4h. Structural characterization performed by XRD and SEM analysis confirmed the formation of iron manganite in the form of a porous network of grains and pores with average particle size of 530 and 430nm, respectively. The influence of humidity on complex impedance and dielectric properties was monitored in the relative humidity range 30-90% in a climatic chamber in the frequency range 42Hz-1MHz at working temperatures of 25 and 50 degrees C. At the lowest frequency of 42Hz the impedance reduced with relative humidity from 57.9 (RH 30%) to 3.21M ohm (RH 90%) at 25 degrees C, and from 23.3 (RH 30%) to 1.3M ohm (RH 90%) at 50 degrees C that is approximately 20 times. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The influence of grains (bulk) was taken into account for higher relative humidity values (70% at 25 degrees C and 60% at 50 degrees C) that is related to the mechanism of water interaction with the sample surface. The dielectric constant and loss tangent decreased with increase in frequency in accordance with the Maxwell-Wagner type interfacial polarization mechanism and also increased with increase in relative humidity.",
publisher = "Springer, Dordrecht",
journal = "Journal of Materials Science-Materials in Electronics",
title = "Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3)",
pages = "12405-12399",
number = "13",
volume = "30",
doi = "10.1007/s10854-019-01598-1"
}

Nikolić, M. V., Luković, M.,& Labus, N. J.. (2019). Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3). in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 30(13), 12399-12405.
https://doi.org/10.1007/s10854-019-01598-1

Nikolić MV, Luković M, Labus NJ. Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3). in Journal of Materials Science-Materials in Electronics. 2019;30(13):12399-12405.
doi:10.1007/s10854-019-01598-1 .

Nikolić, Maria Vesna, Luković, Miloljub, Labus, Nebojša J., "Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3)" in Journal of Materials Science-Materials in Electronics, 30, no. 13 (2019):12399-12405,
https://doi.org/10.1007/s10854-019-01598-1 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Z
AU  - Luković, Miloljub
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
AU  - Krstić, Jugoslav B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1553
AB  - Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.
PB  - Elsevier
T2  - Sensors and Actuators B: Chemical
T1  - Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
EP  - 664
SP  - 654
VL  - 277
DO  - 10.1016/j.snb.2018.09.063
ER  - 

@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Z and Luković, Miloljub and Pavlović, Vera P. and Vujančević, Jelena and Radovanović, Milan and Krstić, Jugoslav B. and Vlahović, Branislav and Pavlović, Vladimir B",
year = "2018",
abstract = "Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.",
publisher = "Elsevier",
journal = "Sensors and Actuators B: Chemical",
title = "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films",
pages = "664-654",
volume = "277",
doi = "10.1016/j.snb.2018.09.063"
}

Nikolić, M. V., Vasiljević, Z. Z., Luković, M., Pavlović, V. P., Vujančević, J., Radovanović, M., Krstić, J. B., Vlahović, B.,& Pavlović, V. B.. (2018). Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical
Elsevier., 277, 654-664.
https://doi.org/10.1016/j.snb.2018.09.063

Nikolić MV, Vasiljević ZZ, Luković M, Pavlović VP, Vujančević J, Radovanović M, Krstić JB, Vlahović B, Pavlović VB. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical. 2018;277:654-664.
doi:10.1016/j.snb.2018.09.063 .

Nikolić, Maria Vesna, Vasiljević, Zorka Z, Luković, Miloljub, Pavlović, Vera P., Vujančević, Jelena, Radovanović, Milan, Krstić, Jugoslav B., Vlahović, Branislav, Pavlović, Vladimir B, "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films" in Sensors and Actuators B: Chemical, 277 (2018):654-664,
https://doi.org/10.1016/j.snb.2018.09.063 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Z
AU  - Luković, Miloljub
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
AU  - Krstić, Jugoslav B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1112
AB  - Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (alpha-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 degrees C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz-1 MHz with humidity was analyzed at room temperature (25 degrees C) and 50 degrees C in the relative humidity range 30-90% and 40-90%, respectively. At 42 Hz, and room temperature the impedance reduced similar to 28 times, while at 50 degrees C it reduced similar to 147 times in the relative humidity range 40-90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 degrees C and 2.64% at 50 degrees C) showing that this is a promising material for application in humidity sensing.
PB  - Elsevier Science Sa, Lausanne
T2  - Sensors and Actuators B-Chemical
T1  - Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
EP  - 664
SP  - 654
VL  - 277
DO  - 10.1016/j.snb.2018.09.063
ER  - 

@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Z and Luković, Miloljub and Pavlović, Vera P. and Vujančević, Jelena and Radovanović, Milan and Krstić, Jugoslav B. and Vlahović, Branislav and Pavlović, Vladimir B",
year = "2018",
abstract = "Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (alpha-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 degrees C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz-1 MHz with humidity was analyzed at room temperature (25 degrees C) and 50 degrees C in the relative humidity range 30-90% and 40-90%, respectively. At 42 Hz, and room temperature the impedance reduced similar to 28 times, while at 50 degrees C it reduced similar to 147 times in the relative humidity range 40-90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 degrees C and 2.64% at 50 degrees C) showing that this is a promising material for application in humidity sensing.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Sensors and Actuators B-Chemical",
title = "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films",
pages = "664-654",
volume = "277",
doi = "10.1016/j.snb.2018.09.063"
}

Nikolić, M. V., Vasiljević, Z. Z., Luković, M., Pavlović, V. P., Vujančević, J., Radovanović, M., Krstić, J. B., Vlahović, B.,& Pavlović, V. B.. (2018). Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B-Chemical
Elsevier Science Sa, Lausanne., 277, 654-664.
https://doi.org/10.1016/j.snb.2018.09.063

Nikolić MV, Vasiljević ZZ, Luković M, Pavlović VP, Vujančević J, Radovanović M, Krstić JB, Vlahović B, Pavlović VB. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B-Chemical. 2018;277:654-664.
doi:10.1016/j.snb.2018.09.063 .

Nikolić, Maria Vesna, Vasiljević, Zorka Z, Luković, Miloljub, Pavlović, Vera P., Vujančević, Jelena, Radovanović, Milan, Krstić, Jugoslav B., Vlahović, Branislav, Pavlović, Vladimir B, "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films" in Sensors and Actuators B-Chemical, 277 (2018):654-664,
https://doi.org/10.1016/j.snb.2018.09.063 . .

TY  - CONF
AU  - Dojčinović, Milena
AU  - Marković, Smilja
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Janković Častvan, Ivona
AU  - Stojković Simatović, Ivana
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4717
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1629
AB  - One of the ways to get rid of toxic organic compounds that industries release into natural waters is photocatalysis of the decomposition of organic compounds on the surface of heterogenous photocatalysts such as zinc oxide. Zinc oxide is a semiconductor that interacts with UV and near-UV visible light by generating electron-hole pairs which decompose organic molecules. Therefore it is useful to explore different ways of synthesizing zinc oxide and to test quality and quantity of organic decomposition photocatalysis so as to enable the commercial use of the material. Zinc oxide is also a respectable material for use as a photoelectrocatalyst in water oxidation, for example, which can be useful for generating oxygen while using natural sunlight - a clean and abundant energy source. In this project nanocrystalline zinc oxide was synthesized by glycin-nitrate combustion process and the powder was annealed on temperatures of 400 °C and 500 °C. Obtained particles where characterized in detail using X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, field emission scanning microscopy (FESEM), photoluminescence spectroscopy (PL) and diffuse reflectance spectroscopy (DRS). The results show that obtained samples are nanocrystalline wurtzite zinc oxide, with particle diameters of 33 nm (annealed at 400 °C) ad 48 nm (annealed at 500 °C). Both samples show significant amount of various crystal defects. Zinc oxide band gap of the samples are determined to be lower than the band gap of the bulk zinc oxide. Photoelectrocatalytic properties were investigated via electrochemical methods: linear voltammetry (LV), chronoamperometry (CA) and impedance spectroscopy (EIS). The results show that material is photostable and reactive to the light. Water oxidation is enhanced by exposing to sunlight. Finally, photocatalytic properties are tested with determining kinetic parameters of phenole and methyl blue decomposition. Zinc oxide nanoparticles are efficient photocatalysts, although sample annealed at 500 °C shows better properties than sample annealed at 400 °C.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia
T1  - Synthesis and characterisation of ZnO synthesized by glycine-nitrate combustion process
EP  - 78
SP  - 78
UR  - https://hdl.handle.net/21.15107/rcub_dais_4717
ER  - 

@conference{
author = "Dojčinović, Milena and Marković, Smilja and Stojadinović, Stevan and Rac, Vladislav and Janković Častvan, Ivona and Stojković Simatović, Ivana",
year = "2018",
abstract = "One of the ways to get rid of toxic organic compounds that industries release into natural waters is photocatalysis of the decomposition of organic compounds on the surface of heterogenous photocatalysts such as zinc oxide. Zinc oxide is a semiconductor that interacts with UV and near-UV visible light by generating electron-hole pairs which decompose organic molecules. Therefore it is useful to explore different ways of synthesizing zinc oxide and to test quality and quantity of organic decomposition photocatalysis so as to enable the commercial use of the material. Zinc oxide is also a respectable material for use as a photoelectrocatalyst in water oxidation, for example, which can be useful for generating oxygen while using natural sunlight - a clean and abundant energy source. In this project nanocrystalline zinc oxide was synthesized by glycin-nitrate combustion process and the powder was annealed on temperatures of 400 °C and 500 °C. Obtained particles where characterized in detail using X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, field emission scanning microscopy (FESEM), photoluminescence spectroscopy (PL) and diffuse reflectance spectroscopy (DRS). The results show that obtained samples are nanocrystalline wurtzite zinc oxide, with particle diameters of 33 nm (annealed at 400 °C) ad 48 nm (annealed at 500 °C). Both samples show significant amount of various crystal defects. Zinc oxide band gap of the samples are determined to be lower than the band gap of the bulk zinc oxide. Photoelectrocatalytic properties were investigated via electrochemical methods: linear voltammetry (LV), chronoamperometry (CA) and impedance spectroscopy (EIS). The results show that material is photostable and reactive to the light. Water oxidation is enhanced by exposing to sunlight. Finally, photocatalytic properties are tested with determining kinetic parameters of phenole and methyl blue decomposition. Zinc oxide nanoparticles are efficient photocatalysts, although sample annealed at 500 °C shows better properties than sample annealed at 400 °C.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia",
title = "Synthesis and characterisation of ZnO synthesized by glycine-nitrate combustion process",
pages = "78-78",
url = "https://hdl.handle.net/21.15107/rcub_dais_4717"
}

Dojčinović, M., Marković, S., Stojadinović, S., Rac, V., Janković Častvan, I.,& Stojković Simatović, I.. (2018). Synthesis and characterisation of ZnO synthesized by glycine-nitrate combustion process. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 78-78.
https://hdl.handle.net/21.15107/rcub_dais_4717

Dojčinović M, Marković S, Stojadinović S, Rac V, Janković Častvan I, Stojković Simatović I. Synthesis and characterisation of ZnO synthesized by glycine-nitrate combustion process. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia. 2018;:78-78.
https://hdl.handle.net/21.15107/rcub_dais_4717 .

Dojčinović, Milena, Marković, Smilja, Stojadinović, Stevan, Rac, Vladislav, Janković Častvan, Ivona, Stojković Simatović, Ivana, "Synthesis and characterisation of ZnO synthesized by glycine-nitrate combustion process" in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia (2018):78-78,
https://hdl.handle.net/21.15107/rcub_dais_4717 .

TY  - CONF
AU  - Luković, Miloljub
AU  - Nikolić, Maria Vesna
AU  - Balaz, Nelu
AU  - Milutinov, Miodrag
AU  - Vasiljević, Zorka Z
AU  - Labus, Nebojša J.
AU  - Aleksić, Obrad S.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/15430
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1636
AB  - Starting hematite (Fe2O3), zinc oxide (ZnO) and manganese carbonate (MnCO3) powders were homogenized in a planetary ball mill in stainless steel bowls with stainless steel balls for 15 min, calcined in air at 1000 C for 2 h, milled in a planetary ball mill for 30 minutes, followed by 4 h in an aghate mill, sieved through a 325 mesh to form four starting powders: MnFe2O4, ZnFe2O4, Mn0.5Zn0.5Fe2O4 and a two-phase mixture of zinc and manganese ferrite. Structural properties of the obtained powders were analyzed using XRD, SEM and EDS. Electrical properties of disk shaped samples were measured at room temperature on an impedance analyzer in the frequency range 100 to 40 MHz, enabling determination and comparison of dielectric permittivity and complex impedance. Complex relative permeability of toroid shaped samples was measured on an impedance analyzer in the frequency range from 1 MHz to 500 MHz.
PB  - Belgrade : Institute for Multidisciplinary Research of the University of Belgrade
C3  - Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia
T1  - Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite
EP  - 102
SP  - 102
UR  - https://hdl.handle.net/21.15107/rcub_dais_15430
ER  - 

@conference{
author = "Luković, Miloljub and Nikolić, Maria Vesna and Balaz, Nelu and Milutinov, Miodrag and Vasiljević, Zorka Z and Labus, Nebojša J. and Aleksić, Obrad S.",
year = "2017",
abstract = "Starting hematite (Fe2O3), zinc oxide (ZnO) and manganese carbonate (MnCO3) powders were homogenized in a planetary ball mill in stainless steel bowls with stainless steel balls for 15 min, calcined in air at 1000 C for 2 h, milled in a planetary ball mill for 30 minutes, followed by 4 h in an aghate mill, sieved through a 325 mesh to form four starting powders: MnFe2O4, ZnFe2O4, Mn0.5Zn0.5Fe2O4 and a two-phase mixture of zinc and manganese ferrite. Structural properties of the obtained powders were analyzed using XRD, SEM and EDS. Electrical properties of disk shaped samples were measured at room temperature on an impedance analyzer in the frequency range 100 to 40 MHz, enabling determination and comparison of dielectric permittivity and complex impedance. Complex relative permeability of toroid shaped samples was measured on an impedance analyzer in the frequency range from 1 MHz to 500 MHz.",
publisher = "Belgrade : Institute for Multidisciplinary Research of the University of Belgrade",
journal = "Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia",
title = "Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite",
pages = "102-102",
url = "https://hdl.handle.net/21.15107/rcub_dais_15430"
}

Luković, M., Nikolić, M. V., Balaz, N., Milutinov, M., Vasiljević, Z. Z., Labus, N. J.,& Aleksić, O. S.. (2017). Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite. in Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research of the University of Belgrade., 102-102.
https://hdl.handle.net/21.15107/rcub_dais_15430

Luković M, Nikolić MV, Balaz N, Milutinov M, Vasiljević ZZ, Labus NJ, Aleksić OS. Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite. in Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia. 2017;:102-102.
https://hdl.handle.net/21.15107/rcub_dais_15430 .

Luković, Miloljub, Nikolić, Maria Vesna, Balaz, Nelu, Milutinov, Miodrag, Vasiljević, Zorka Z, Labus, Nebojša J., Aleksić, Obrad S., "Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite" in Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia (2017):102-102,
https://hdl.handle.net/21.15107/rcub_dais_15430 .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Vasiljević, Zorka Z
AU  - Aleksić, Obrad
AU  - Luković, Miloljub
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B
AU  - Mentus, Slavko
AU  - Nikolić, Maria Vesna
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1102
AB  - Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. The goal was to observe intensive milling influences on oxidation and reduction processes that will happen during subsequent heating. Powders were characterized with XRD, SEM and particle seizer. Subsequent heating was monitored on TGA/DTA in an air atmosphere. After compaction of the milled powders, sintering was also performed in a dilatometric device. Sintered specimens were characterized micro structurally with SEM on a fresh breakage. Obtained differential TGA diagrams suggest intensive changes during prolonged milling of the oxidation kinetics on heating. Ferrite powders changed with milling as well as with second run heating were characterized to enable determination of the potentially best ratio of milling and heating to be applied to obtain the desired microstructure.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment
EP  - 467
IS  - 4
SP  - 455
VL  - 49
DO  - 10.2298/SOS1704455L
ER  - 

@article{
author = "Labus, Nebojša J. and Vasiljević, Zorka Z and Aleksić, Obrad and Luković, Miloljub and Marković, Smilja and Pavlović, Vladimir B and Mentus, Slavko and Nikolić, Maria Vesna",
year = "2017",
abstract = "Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. The goal was to observe intensive milling influences on oxidation and reduction processes that will happen during subsequent heating. Powders were characterized with XRD, SEM and particle seizer. Subsequent heating was monitored on TGA/DTA in an air atmosphere. After compaction of the milled powders, sintering was also performed in a dilatometric device. Sintered specimens were characterized micro structurally with SEM on a fresh breakage. Obtained differential TGA diagrams suggest intensive changes during prolonged milling of the oxidation kinetics on heating. Ferrite powders changed with milling as well as with second run heating were characterized to enable determination of the potentially best ratio of milling and heating to be applied to obtain the desired microstructure.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment",
pages = "467-455",
number = "4",
volume = "49",
doi = "10.2298/SOS1704455L"
}

Labus, N. J., Vasiljević, Z. Z., Aleksić, O., Luković, M., Marković, S., Pavlović, V. B., Mentus, S.,& Nikolić, M. V.. (2017). Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(4), 455-467.
https://doi.org/10.2298/SOS1704455L

Labus NJ, Vasiljević ZZ, Aleksić O, Luković M, Marković S, Pavlović VB, Mentus S, Nikolić MV. Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment. in Science of Sintering. 2017;49(4):455-467.
doi:10.2298/SOS1704455L .

Labus, Nebojša J., Vasiljević, Zorka Z, Aleksić, Obrad, Luković, Miloljub, Marković, Smilja, Pavlović, Vladimir B, Mentus, Slavko, Nikolić, Maria Vesna, "Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment" in Science of Sintering, 49, no. 4 (2017):455-467,
https://doi.org/10.2298/SOS1704455L . .

TY  - JOUR
AU  - Aleksić, Obrad
AU  - Vasiljević, Zorka Z
AU  - Vujković, Milica
AU  - Nikolic, Marko
AU  - Labus, Nebojša J.
AU  - Luković, Miloljub
AU  - Nikolić, Maria Vesna
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1098
AB  - Nanostructured Fe2TiO5 thick films were deposited on fluorine-doped tin oxide glass substrate using screen printing technology. Starting hematite and anatase nanopowders were mixed in molar ratios 1:1 and 1:1.5 and calcined in air at 900A degrees C for 2 h to form pseudobrookite, Fe2TiO5. Functional powders and sintered thick films were analyzed by X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy and transmission electron microscopy. UV-Vis analysis enabled determination of the band gap. Separation and transfer efficiency of photogenerated charge carriers was confirmed by the photoluminescence and electrochemical impedance spectra. Even though a slightly high onset oxygen evolution potential of photoexcited film electrode samples in NaOH was obtained, photocurrent densities were high, especially in the presence of H2O2 (similar to 12 mA cm(-2) at 1.7 V RHE). This work shows promise for practical application due to favorable band positions of pseudobrookite and low-cost screen printing technology.
PB  - Springer, New York
T2  - Journal of Materials Science
T1  - Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior
EP  - 5953
IS  - 10
SP  - 5938
VL  - 52
DO  - 10.1007/s10853-017-0830-2
ER  - 

@article{
author = "Aleksić, Obrad and Vasiljević, Zorka Z and Vujković, Milica and Nikolic, Marko and Labus, Nebojša J. and Luković, Miloljub and Nikolić, Maria Vesna",
year = "2017",
abstract = "Nanostructured Fe2TiO5 thick films were deposited on fluorine-doped tin oxide glass substrate using screen printing technology. Starting hematite and anatase nanopowders were mixed in molar ratios 1:1 and 1:1.5 and calcined in air at 900A degrees C for 2 h to form pseudobrookite, Fe2TiO5. Functional powders and sintered thick films were analyzed by X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy and transmission electron microscopy. UV-Vis analysis enabled determination of the band gap. Separation and transfer efficiency of photogenerated charge carriers was confirmed by the photoluminescence and electrochemical impedance spectra. Even though a slightly high onset oxygen evolution potential of photoexcited film electrode samples in NaOH was obtained, photocurrent densities were high, especially in the presence of H2O2 (similar to 12 mA cm(-2) at 1.7 V RHE). This work shows promise for practical application due to favorable band positions of pseudobrookite and low-cost screen printing technology.",
publisher = "Springer, New York",
journal = "Journal of Materials Science",
title = "Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior",
pages = "5953-5938",
number = "10",
volume = "52",
doi = "10.1007/s10853-017-0830-2"
}

Aleksić, O., Vasiljević, Z. Z., Vujković, M., Nikolic, M., Labus, N. J., Luković, M.,& Nikolić, M. V.. (2017). Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior. in Journal of Materials Science
Springer, New York., 52(10), 5938-5953.
https://doi.org/10.1007/s10853-017-0830-2

Aleksić O, Vasiljević ZZ, Vujković M, Nikolic M, Labus NJ, Luković M, Nikolić MV. Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior. in Journal of Materials Science. 2017;52(10):5938-5953.
doi:10.1007/s10853-017-0830-2 .

Aleksić, Obrad, Vasiljević, Zorka Z, Vujković, Milica, Nikolic, Marko, Labus, Nebojša J., Luković, Miloljub, Nikolić, Maria Vesna, "Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior" in Journal of Materials Science, 52, no. 10 (2017):5938-5953,
https://doi.org/10.1007/s10853-017-0830-2 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Sekulic, Dalibor L
AU  - Vasiljević, Zorka Z
AU  - Luković, Miloljub
AU  - Pavlović, Vladimir B
AU  - Aleksić, Obrad
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1097
AB  - In this work we have investigated changes in dielectric properties, electrical conductivity and complex impedance of Fe2TiO5 nanopowder compacts and bulk samples as a function of elevated temperature (room to 423 K compacts, to 443 K bulk samples), frequency (100 Hz-1 MHz) and composition (starting molar ratio of Fe2O3 and TiO2 1:1-PSB11 and 1:1.5-PSB115). XRD, SEM and TEM analysis of PSB11 and PSB115 powders obtained by a simple solid state process from starting hematite and anatase nanopowders confirmed the formation of nanostructured orthorhombic pseudobrookite with small amounts of excess hematite and rutile. The dielectric constant decreased with frequency and temperature for both compacts and bulk samples. Higher values were determined for bulk samples also reflecting the influence of sample composition. Change in the dielectric loss also reflected the influence of sample composition showing one maximum at high frequencies for compacts, and two maxima at room temperature for bulk samples. Complex impedance was analyzed using equivalent circuits and showed in the case of compacts the influence of both grain and grain boundary components, while in the case of bulk samples the dominant influence of grain boundaries. The temperature dependence of the determined grain and grain boundary resistance for compacts and grain boundary resistance for bulk samples was analyzed using the adiabatic small polaron hopping model enabling determination of activation energies for conduction, while the temperature dependence of relaxation times enabled determination of activation energies for relaxation. Changes in electrical conductivity for compacts and bulk samples followed Jonscher's power law. The change of the determined frequency constant with temperature showed that at elevated temperatures the quantum mechanical-tunneling model for the case of small polaron hopping explains the conduction mechanism occurring in both compacts and bulk samples.
PB  - Springer, Dordrecht
T2  - Journal of Materials Science-Materials in Electronics
T1  - Dielectric properties, complex impedance and electrical conductivity of Fe2TiO5 nanopowder compacts and bulk samples at elevated temperatures
EP  - 4806
IS  - 6
SP  - 4796
VL  - 28
DO  - 10.1007/s10854-016-6125-6
ER  - 

@article{
author = "Nikolić, Maria Vesna and Sekulic, Dalibor L and Vasiljević, Zorka Z and Luković, Miloljub and Pavlović, Vladimir B and Aleksić, Obrad",
year = "2017",
abstract = "In this work we have investigated changes in dielectric properties, electrical conductivity and complex impedance of Fe2TiO5 nanopowder compacts and bulk samples as a function of elevated temperature (room to 423 K compacts, to 443 K bulk samples), frequency (100 Hz-1 MHz) and composition (starting molar ratio of Fe2O3 and TiO2 1:1-PSB11 and 1:1.5-PSB115). XRD, SEM and TEM analysis of PSB11 and PSB115 powders obtained by a simple solid state process from starting hematite and anatase nanopowders confirmed the formation of nanostructured orthorhombic pseudobrookite with small amounts of excess hematite and rutile. The dielectric constant decreased with frequency and temperature for both compacts and bulk samples. Higher values were determined for bulk samples also reflecting the influence of sample composition. Change in the dielectric loss also reflected the influence of sample composition showing one maximum at high frequencies for compacts, and two maxima at room temperature for bulk samples. Complex impedance was analyzed using equivalent circuits and showed in the case of compacts the influence of both grain and grain boundary components, while in the case of bulk samples the dominant influence of grain boundaries. The temperature dependence of the determined grain and grain boundary resistance for compacts and grain boundary resistance for bulk samples was analyzed using the adiabatic small polaron hopping model enabling determination of activation energies for conduction, while the temperature dependence of relaxation times enabled determination of activation energies for relaxation. Changes in electrical conductivity for compacts and bulk samples followed Jonscher's power law. The change of the determined frequency constant with temperature showed that at elevated temperatures the quantum mechanical-tunneling model for the case of small polaron hopping explains the conduction mechanism occurring in both compacts and bulk samples.",
publisher = "Springer, Dordrecht",
journal = "Journal of Materials Science-Materials in Electronics",
title = "Dielectric properties, complex impedance and electrical conductivity of Fe2TiO5 nanopowder compacts and bulk samples at elevated temperatures",
pages = "4806-4796",
number = "6",
volume = "28",
doi = "10.1007/s10854-016-6125-6"
}

Nikolić, M. V., Sekulic, D. L., Vasiljević, Z. Z., Luković, M., Pavlović, V. B.,& Aleksić, O.. (2017). Dielectric properties, complex impedance and electrical conductivity of Fe2TiO5 nanopowder compacts and bulk samples at elevated temperatures. in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 28(6), 4796-4806.
https://doi.org/10.1007/s10854-016-6125-6

Nikolić MV, Sekulic DL, Vasiljević ZZ, Luković M, Pavlović VB, Aleksić O. Dielectric properties, complex impedance and electrical conductivity of Fe2TiO5 nanopowder compacts and bulk samples at elevated temperatures. in Journal of Materials Science-Materials in Electronics. 2017;28(6):4796-4806.
doi:10.1007/s10854-016-6125-6 .

Nikolić, Maria Vesna, Sekulic, Dalibor L, Vasiljević, Zorka Z, Luković, Miloljub, Pavlović, Vladimir B, Aleksić, Obrad, "Dielectric properties, complex impedance and electrical conductivity of Fe2TiO5 nanopowder compacts and bulk samples at elevated temperatures" in Journal of Materials Science-Materials in Electronics, 28, no. 6 (2017):4796-4806,
https://doi.org/10.1007/s10854-016-6125-6 . .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Aleksić, Obrad S.
AU  - Luković, Miloljub D.
AU  - Vujković, Milica
AU  - Pavlović, Vladimir B
AU  - Labus, Nebojša
AU  - Nikolić, Maria Vesna
PY  - 2016
AB  - Pseudobrookite paste was composed of a mixture of starting nanopowders of hematite (α-Fe2O3) and anatase (TiO2) in the molar ratio 1:1.5, organic vehicle and glass frit. The paste was screen printed on on fluorine-doped tin oxide (FTO) glass substrate using screen printing technology. Structural, morphological and optical studies have been carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The photo-electrochemical performance of Fe2TiO5 screen printed thick film was examined under xenon lamp illumination in 1 M NaOH electrolyte.
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts
C3  - Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45
T1  - Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1109
ER  - 

@conference{
author = "Vasiljević, Zorka Z and Aleksić, Obrad S. and Luković, Miloljub D. and Vujković, Milica and Pavlović, Vladimir B and Labus, Nebojša and Nikolić, Maria Vesna",
year = "2016",
abstract = "Pseudobrookite paste was composed of a mixture of starting nanopowders of hematite (α-Fe2O3) and anatase (TiO2) in the molar ratio 1:1.5, organic vehicle and glass frit. The paste was screen printed on on fluorine-doped tin oxide (FTO) glass substrate using screen printing technology. Structural, morphological and optical studies have been carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The photo-electrochemical performance of Fe2TiO5 screen printed thick film was examined under xenon lamp illumination in 1 M NaOH electrolyte.",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts",
journal = "Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45",
title = "Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1109"
}

Vasiljević, Z. Z., Aleksić, O. S., Luković, M. D., Vujković, M., Pavlović, V. B., Labus, N.,& Nikolić, M. V.. (2016). Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films. in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45
Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts..
https://hdl.handle.net/21.15107/rcub_rimsi_1109

Vasiljević ZZ, Aleksić OS, Luković MD, Vujković M, Pavlović VB, Labus N, Nikolić MV. Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films. in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45. 2016;.
https://hdl.handle.net/21.15107/rcub_rimsi_1109 .

Vasiljević, Zorka Z, Aleksić, Obrad S., Luković, Miloljub D., Vujković, Milica, Pavlović, Vladimir B, Labus, Nebojša, Nikolić, Maria Vesna, "Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films" in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45 (2016),
https://hdl.handle.net/21.15107/rcub_rimsi_1109 .

TY  - JOUR
AU  - Vujković, Milica
AU  - Nedic, Zoran
AU  - Tancic, Pavle
AU  - Aleksić, Obrad
AU  - Nikolić, Maria Vesna
AU  - Mioc, Ubavka
AU  - Mentus, Slavko
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/937
AB  - Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 A degrees C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li-3-WPB) was synthesized by heating lithium salt of WPA at 650 A degrees C. Its lithiated derivative with a high lithium content was synthesized by mechanochemical lithiation of Li3WPB (Li (n) -WPB) (n > 3), followed by heat treatment at 650 A degrees C. X-ray powder diffraction analysis confirmed that the bronze structure changed with the increase of the incorporated lithium content. These bronzes were investigated from the aspect of lithiation/delithiation kinetics in an aqueous saturated LiNO3 electrolyte solution. By cyclic voltammetry, both the kinetics of intercalation/deintercalation and the coulombic capacity were found to decrease with the increase of initial lithium content, in agreement with literature data for electrochemically lithiated tungstophosphate bronzes. Monoclinic lithium-free bronze PW8O26, as the most promising material, was subjected to a further detailed galvanostatic investigation coupled with the LiFe0.95V0.05PO4/C composite as a cathode material in an aqueous battery. In comparison to its behavior in an organic electrolyte, a considerably lower initial capacity of the bronze electrode was measured. However, its cyclic stability was much better in an aqueous than in an organic electrolyte.
PB  - Springer, New York
T2  - Journal of Materials Science
T1  - Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions
EP  - 2489
IS  - 5
SP  - 2481
VL  - 51
DO  - 10.1007/s10853-015-9560-5
ER  - 

@article{
author = "Vujković, Milica and Nedic, Zoran and Tancic, Pavle and Aleksić, Obrad and Nikolić, Maria Vesna and Mioc, Ubavka and Mentus, Slavko",
year = "2016",
abstract = "Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 A degrees C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li-3-WPB) was synthesized by heating lithium salt of WPA at 650 A degrees C. Its lithiated derivative with a high lithium content was synthesized by mechanochemical lithiation of Li3WPB (Li (n) -WPB) (n > 3), followed by heat treatment at 650 A degrees C. X-ray powder diffraction analysis confirmed that the bronze structure changed with the increase of the incorporated lithium content. These bronzes were investigated from the aspect of lithiation/delithiation kinetics in an aqueous saturated LiNO3 electrolyte solution. By cyclic voltammetry, both the kinetics of intercalation/deintercalation and the coulombic capacity were found to decrease with the increase of initial lithium content, in agreement with literature data for electrochemically lithiated tungstophosphate bronzes. Monoclinic lithium-free bronze PW8O26, as the most promising material, was subjected to a further detailed galvanostatic investigation coupled with the LiFe0.95V0.05PO4/C composite as a cathode material in an aqueous battery. In comparison to its behavior in an organic electrolyte, a considerably lower initial capacity of the bronze electrode was measured. However, its cyclic stability was much better in an aqueous than in an organic electrolyte.",
publisher = "Springer, New York",
journal = "Journal of Materials Science",
title = "Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions",
pages = "2489-2481",
number = "5",
volume = "51",
doi = "10.1007/s10853-015-9560-5"
}

Vujković, M., Nedic, Z., Tancic, P., Aleksić, O., Nikolić, M. V., Mioc, U.,& Mentus, S.. (2016). Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions. in Journal of Materials Science
Springer, New York., 51(5), 2481-2489.
https://doi.org/10.1007/s10853-015-9560-5

Vujković M, Nedic Z, Tancic P, Aleksić O, Nikolić MV, Mioc U, Mentus S. Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions. in Journal of Materials Science. 2016;51(5):2481-2489.
doi:10.1007/s10853-015-9560-5 .

Vujković, Milica, Nedic, Zoran, Tancic, Pavle, Aleksić, Obrad, Nikolić, Maria Vesna, Mioc, Ubavka, Mentus, Slavko, "Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions" in Journal of Materials Science, 51, no. 5 (2016):2481-2489,
https://doi.org/10.1007/s10853-015-9560-5 . .

TY  - CONF
AU  - Aleksić, Obrad S.
AU  - Milutinov, Predrag
AU  - Nikolić, Maria Vesna
AU  - Blaž, Nelu
AU  - Luković, Miloljub
AU  - Vasiljević, Zorka Z
AU  - Marković, Smilja
AU  - Živanov, Ljiljana D
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/15427
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1635
AB  - Commercial Mn-Zn ferrite powder was milled in a planetary ball mill for 30-240 minutes. Particle size distribution in the milled powders was analyzed using a laser particle size analyzer and correlated with XRD and SEM analysis of the milled powders. Green disc and torroid samples were sintered in air in the temperature interval 800 -1300oC for 2 hours. SEM/EDS, AFM/MFM analysis of the sintered samples and measurements of their electrical properties such as DC resistance up to 500 MHz enabled establishment of a correlation between the microstructure and properties in the high-frequency range.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
T1  - Tailoring the microstructure of Mn-Zn ferrite to electronic properties
EP  - 101
SP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_dais_15427
ER  - 

@conference{
author = "Aleksić, Obrad S. and Milutinov, Predrag and Nikolić, Maria Vesna and Blaž, Nelu and Luković, Miloljub and Vasiljević, Zorka Z and Marković, Smilja and Živanov, Ljiljana D",
year = "2015",
abstract = "Commercial Mn-Zn ferrite powder was milled in a planetary ball mill for 30-240 minutes. Particle size distribution in the milled powders was analyzed using a laser particle size analyzer and correlated with XRD and SEM analysis of the milled powders. Green disc and torroid samples were sintered in air in the temperature interval 800 -1300oC for 2 hours. SEM/EDS, AFM/MFM analysis of the sintered samples and measurements of their electrical properties such as DC resistance up to 500 MHz enabled establishment of a correlation between the microstructure and properties in the high-frequency range.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia",
title = "Tailoring the microstructure of Mn-Zn ferrite to electronic properties",
pages = "101-101",
url = "https://hdl.handle.net/21.15107/rcub_dais_15427"
}

Aleksić, O. S., Milutinov, P., Nikolić, M. V., Blaž, N., Luković, M., Vasiljević, Z. Z., Marković, S.,& Živanov, L. D.. (2015). Tailoring the microstructure of Mn-Zn ferrite to electronic properties. in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 101-101.
https://hdl.handle.net/21.15107/rcub_dais_15427

Aleksić OS, Milutinov P, Nikolić MV, Blaž N, Luković M, Vasiljević ZZ, Marković S, Živanov LD. Tailoring the microstructure of Mn-Zn ferrite to electronic properties. in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia. 2015;:101-101.
https://hdl.handle.net/21.15107/rcub_dais_15427 .

Aleksić, Obrad S., Milutinov, Predrag, Nikolić, Maria Vesna, Blaž, Nelu, Luković, Miloljub, Vasiljević, Zorka Z, Marković, Smilja, Živanov, Ljiljana D, "Tailoring the microstructure of Mn-Zn ferrite to electronic properties" in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia (2015):101-101,
https://hdl.handle.net/21.15107/rcub_dais_15427 .

TY  - JOUR
AU  - Nikolić, Pantelija M.
AU  - Paraskevopoulos, K.M.
AU  - Zorba, T.T.
AU  - Vasiljević, Zorka Z
AU  - Pavlidou, E.
AU  - Vujatović, Stevan S.
AU  - Blagojević, Vladimir
AU  - Aleksić, Obrad
AU  - Bojicic, Aleksandar
AU  - Nikolić, Maria Vesna
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/824
AB  - PbTe single crystals doped with monovalent Au or Cu were grown using the Bridgman method. Far infrared reflectivity spectra were measured at room temperature for all samples and plasma minima were registered. These experimental spectra were numerically analyzed and optical parameters were calculated. All the samples of PbTe doped with Au or Cu were of the "n" type. The properties of these compositions were analyzed and compared with PbTe containing other dopants. The samples of PbTe doped with only 3.3 at% Au were the best among the PbTe + Au samples having the lowest plasma frequency and the highest mobility of free carriers-electrons, while PbTe doped with Cu was the opposite. Samples with the lowest Cu concentration of 0.23 at% Cu had the best properties. Thermal diffusivity and electronic transport properties of the same PbTe doped samples were also investigated using a photoacoustic (PA) method with the transmission detection configuration. The results obtained with the far infrared and photoacoustic characterization of PbTe doped samples were compared and discussed. Both methods confirmed that when PbTe was doped with 3.3 at% Au, thermoelectric and electrical properties of this doped semiconductor were both significantly improved, so Au as a dopant in PbTe could be used as a new high quality thermoelectric material.
PB  - Hindawi Ltd, London
T2  - Advances in Materials Science and Engineering
T1  - Lead Telluride Doped with Au as a Very Promising Material for Thermoelectric Applications
VL  - 2015
DO  - 10.1155/2015/283782
ER  - 

@article{
author = "Nikolić, Pantelija M. and Paraskevopoulos, K.M. and Zorba, T.T. and Vasiljević, Zorka Z and Pavlidou, E. and Vujatović, Stevan S. and Blagojević, Vladimir and Aleksić, Obrad and Bojicic, Aleksandar and Nikolić, Maria Vesna",
year = "2015",
abstract = "PbTe single crystals doped with monovalent Au or Cu were grown using the Bridgman method. Far infrared reflectivity spectra were measured at room temperature for all samples and plasma minima were registered. These experimental spectra were numerically analyzed and optical parameters were calculated. All the samples of PbTe doped with Au or Cu were of the "n" type. The properties of these compositions were analyzed and compared with PbTe containing other dopants. The samples of PbTe doped with only 3.3 at% Au were the best among the PbTe + Au samples having the lowest plasma frequency and the highest mobility of free carriers-electrons, while PbTe doped with Cu was the opposite. Samples with the lowest Cu concentration of 0.23 at% Cu had the best properties. Thermal diffusivity and electronic transport properties of the same PbTe doped samples were also investigated using a photoacoustic (PA) method with the transmission detection configuration. The results obtained with the far infrared and photoacoustic characterization of PbTe doped samples were compared and discussed. Both methods confirmed that when PbTe was doped with 3.3 at% Au, thermoelectric and electrical properties of this doped semiconductor were both significantly improved, so Au as a dopant in PbTe could be used as a new high quality thermoelectric material.",
publisher = "Hindawi Ltd, London",
journal = "Advances in Materials Science and Engineering",
title = "Lead Telluride Doped with Au as a Very Promising Material for Thermoelectric Applications",
volume = "2015",
doi = "10.1155/2015/283782"
}

Nikolić, P. M., Paraskevopoulos, K.M., Zorba, T.T., Vasiljević, Z. Z., Pavlidou, E., Vujatović, S. S., Blagojević, V., Aleksić, O., Bojicic, A.,& Nikolić, M. V.. (2015). Lead Telluride Doped with Au as a Very Promising Material for Thermoelectric Applications. in Advances in Materials Science and Engineering
Hindawi Ltd, London., 2015.
https://doi.org/10.1155/2015/283782

Nikolić PM, Paraskevopoulos K, Zorba T, Vasiljević ZZ, Pavlidou E, Vujatović SS, Blagojević V, Aleksić O, Bojicic A, Nikolić MV. Lead Telluride Doped with Au as a Very Promising Material for Thermoelectric Applications. in Advances in Materials Science and Engineering. 2015;2015.
doi:10.1155/2015/283782 .

Nikolić, Pantelija M., Paraskevopoulos, K.M., Zorba, T.T., Vasiljević, Zorka Z, Pavlidou, E., Vujatović, Stevan S., Blagojević, Vladimir, Aleksić, Obrad, Bojicic, Aleksandar, Nikolić, Maria Vesna, "Lead Telluride Doped with Au as a Very Promising Material for Thermoelectric Applications" in Advances in Materials Science and Engineering, 2015 (2015),
https://doi.org/10.1155/2015/283782 . .

TY  - JOUR
AU  - Stojmenović, M.
AU  - Bošković, Snežana B
AU  - Žunić, Milan
AU  - Babić, Biljana M.
AU  - Matović, Branko
AU  - Bajuk-Bogdanović, Danica
AU  - Mentus, S.
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/872
AB  - A series of four different powders ceria doped Ce1-xErxO2-delta (0.05  lt = x  lt = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials. The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC
EP  - 431
SP  - 422
VL  - 153
DO  - 10.1016/j.matchemphys.2015.01.036
ER  - 

@article{
author = "Stojmenović, M. and Bošković, Snežana B and Žunić, Milan and Babić, Biljana M. and Matović, Branko and Bajuk-Bogdanović, Danica and Mentus, S.",
year = "2015",
abstract = "A series of four different powders ceria doped Ce1-xErxO2-delta (0.05  lt = x  lt = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials. The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC",
pages = "431-422",
volume = "153",
doi = "10.1016/j.matchemphys.2015.01.036"
}

Stojmenović, M., Bošković, S. B., Žunić, M., Babić, B. M., Matović, B., Bajuk-Bogdanović, D.,& Mentus, S.. (2015). Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 153, 422-431.
https://doi.org/10.1016/j.matchemphys.2015.01.036

Stojmenović M, Bošković SB, Žunić M, Babić BM, Matović B, Bajuk-Bogdanović D, Mentus S. Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC. in Materials Chemistry and Physics. 2015;153:422-431.
doi:10.1016/j.matchemphys.2015.01.036 .

Stojmenović, M., Bošković, Snežana B, Žunić, Milan, Babić, Biljana M., Matović, Branko, Bajuk-Bogdanović, Danica, Mentus, S., "Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC" in Materials Chemistry and Physics, 153 (2015):422-431,
https://doi.org/10.1016/j.matchemphys.2015.01.036 . .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Mentus, S.
AU  - Rakic, S.
AU  - Đurić, Zorka Z
AU  - Vujančević, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/845
AB  - The scope of this work was observing dimensional and heat transfer changes in ZnTiO3 samples during heating in nitrogen and air atmosphere. Interactions of bulk specimens with gaseous surrounding induce microstructure changes during heating. Sintered ZnTiO3 nanopowder samples were submitted to subsequent heating. Dilatation curves and thermogravimetric with simultaneous differential thermal analysis TGA/DTA curves were recorded. Reheating was performed in air and nitrogen atmospheres. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). Microstructures obtained by scanning electron microscopy (SEM) of reheated sintered samples are presented and compared. Reheating in a different atmosphere induced different microstructures. The goal was indicating possible causes leading to the microstructure changes.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Reheating of Zinc-titanate Sintered Specimens
EP  - 81
IS  - 1
SP  - 71
VL  - 47
DO  - 10.2298/SOS1501071L
ER  - 

@article{
author = "Labus, Nebojša J. and Mentus, S. and Rakic, S. and Đurić, Zorka Z and Vujančević, Jelena and Nikolić, Maria Vesna",
year = "2015",
abstract = "The scope of this work was observing dimensional and heat transfer changes in ZnTiO3 samples during heating in nitrogen and air atmosphere. Interactions of bulk specimens with gaseous surrounding induce microstructure changes during heating. Sintered ZnTiO3 nanopowder samples were submitted to subsequent heating. Dilatation curves and thermogravimetric with simultaneous differential thermal analysis TGA/DTA curves were recorded. Reheating was performed in air and nitrogen atmospheres. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). Microstructures obtained by scanning electron microscopy (SEM) of reheated sintered samples are presented and compared. Reheating in a different atmosphere induced different microstructures. The goal was indicating possible causes leading to the microstructure changes.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Reheating of Zinc-titanate Sintered Specimens",
pages = "81-71",
number = "1",
volume = "47",
doi = "10.2298/SOS1501071L"
}

Labus, N. J., Mentus, S., Rakic, S., Đurić, Z. Z., Vujančević, J.,& Nikolić, M. V.. (2015). Reheating of Zinc-titanate Sintered Specimens. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 47(1), 71-81.
https://doi.org/10.2298/SOS1501071L

Labus NJ, Mentus S, Rakic S, Đurić ZZ, Vujančević J, Nikolić MV. Reheating of Zinc-titanate Sintered Specimens. in Science of Sintering. 2015;47(1):71-81.
doi:10.2298/SOS1501071L .

Labus, Nebojša J., Mentus, S., Rakic, S., Đurić, Zorka Z, Vujančević, Jelena, Nikolić, Maria Vesna, "Reheating of Zinc-titanate Sintered Specimens" in Science of Sintering, 47, no. 1 (2015):71-81,
https://doi.org/10.2298/SOS1501071L . .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Mentus, S.
AU  - Đurić, Zorka Z
AU  - Nikolić, Maria Vesna
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/748
AB  - The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens
EP  - 375
IS  - 3
SP  - 365
VL  - 46
DO  - 10.2298/SOS1403365L
ER  - 

@article{
author = "Labus, Nebojša J. and Mentus, S. and Đurić, Zorka Z and Nikolić, Maria Vesna",
year = "2014",
abstract = "The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens",
pages = "375-365",
number = "3",
volume = "46",
doi = "10.2298/SOS1403365L"
}

Labus, N. J., Mentus, S., Đurić, Z. Z.,& Nikolić, M. V.. (2014). Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 46(3), 365-375.
https://doi.org/10.2298/SOS1403365L

Labus NJ, Mentus S, Đurić ZZ, Nikolić MV. Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens. in Science of Sintering. 2014;46(3):365-375.
doi:10.2298/SOS1403365L .

Labus, Nebojša J., Mentus, S., Đurić, Zorka Z, Nikolić, Maria Vesna, "Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens" in Science of Sintering, 46, no. 3 (2014):365-375,
https://doi.org/10.2298/SOS1403365L . .

TY  - JOUR
AU  - Nikolić, Pantelija M.
AU  - Paraskevopoulos, K.M.
AU  - Zorba, T.T.
AU  - Vasiljević, Zorka Z
AU  - Pavlidou, E.
AU  - Vujatović, Stevan S
AU  - Blagojević, V.
AU  - Aleksić, Obrad
AU  - Nikolić, Maria Vesna
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/683
AB  - PbTe single crystal samples doped with Mn and Yb were grown using the Bridgman method. Far infrared reflectivity spectra were measured at room temperature for samples with different impurity concentrations (total impurity concentration Mn+Yb varied between 0.59 and 2.52 at%, while the impurity Mn/Yb ratio varied between 0 and 3.48). All samples were of the "p" type. Plasma minimum was registered for all samples and varied between 114 and 198 cm(-1) depending on the total impurity concentration and ratio. Samples with lower plasma minimum had a higher free hole mobility, with the highest value of 7000 cm(2)/Vs determined for a sample with the highest Mn/Yb ratio of 3.48 (1.67 at.% Mn and 0.48 at.% Yb).
PB  - National Institute of Optoelectronics
T2  - Optoelectronics and Advanced Materials, Rapid Communications
T1  - Far infrared reflectivity spectra of lead-telluride doped with Mn and Yb
EP  - 366
IS  - 5-6
SP  - 362
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_dais_374
ER  - 

@article{
author = "Nikolić, Pantelija M. and Paraskevopoulos, K.M. and Zorba, T.T. and Vasiljević, Zorka Z and Pavlidou, E. and Vujatović, Stevan S and Blagojević, V. and Aleksić, Obrad and Nikolić, Maria Vesna",
year = "2013",
abstract = "PbTe single crystal samples doped with Mn and Yb were grown using the Bridgman method. Far infrared reflectivity spectra were measured at room temperature for samples with different impurity concentrations (total impurity concentration Mn+Yb varied between 0.59 and 2.52 at%, while the impurity Mn/Yb ratio varied between 0 and 3.48). All samples were of the "p" type. Plasma minimum was registered for all samples and varied between 114 and 198 cm(-1) depending on the total impurity concentration and ratio. Samples with lower plasma minimum had a higher free hole mobility, with the highest value of 7000 cm(2)/Vs determined for a sample with the highest Mn/Yb ratio of 3.48 (1.67 at.% Mn and 0.48 at.% Yb).",
publisher = "National Institute of Optoelectronics",
journal = "Optoelectronics and Advanced Materials, Rapid Communications",
title = "Far infrared reflectivity spectra of lead-telluride doped with Mn and Yb",
pages = "366-362",
number = "5-6",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_dais_374"
}

Nikolić, P. M., Paraskevopoulos, K.M., Zorba, T.T., Vasiljević, Z. Z., Pavlidou, E., Vujatović, S. S., Blagojević, V., Aleksić, O.,& Nikolić, M. V.. (2013). Far infrared reflectivity spectra of lead-telluride doped with Mn and Yb. in Optoelectronics and Advanced Materials, Rapid Communications
National Institute of Optoelectronics., 7(5-6), 362-366.
https://hdl.handle.net/21.15107/rcub_dais_374

Nikolić PM, Paraskevopoulos K, Zorba T, Vasiljević ZZ, Pavlidou E, Vujatović SS, Blagojević V, Aleksić O, Nikolić MV. Far infrared reflectivity spectra of lead-telluride doped with Mn and Yb. in Optoelectronics and Advanced Materials, Rapid Communications. 2013;7(5-6):362-366.
https://hdl.handle.net/21.15107/rcub_dais_374 .

Nikolić, Pantelija M., Paraskevopoulos, K.M., Zorba, T.T., Vasiljević, Zorka Z, Pavlidou, E., Vujatović, Stevan S, Blagojević, V., Aleksić, Obrad, Nikolić, Maria Vesna, "Far infrared reflectivity spectra of lead-telluride doped with Mn and Yb" in Optoelectronics and Advanced Materials, Rapid Communications, 7, no. 5-6 (2013):362-366,
https://hdl.handle.net/21.15107/rcub_dais_374 .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Sekulic, Dalibor L
AU  - Nikolić, Nenad
AU  - Slankamenac, Milos P
AU  - Aleksić, Obrad
AU  - Danninger, H
AU  - Halwax, E
AU  - Pavlović, Vladimir B
AU  - Nikolić, Pantelija M.
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/657
AB  - In this work we have analyzed the effects of Ti doping on structural and electrical properties of alpha-Fe2O3. When the amount of added Ti (5 wt.% TiO2) was within the solubility degree and XRD, SEM and EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3), c= 13.7484(1) slightly increased due to incorporation of Ti into the rhombohedral hematite lattice. Higher amounts of Ti (10 wt.% TiO2) resulted in the formation of pseudobrookite, besides hematite, confirmed by SEM and EDS analysis. Studies of electric properties in the temperature range 25-225oC at different frequencies (100-1Mz) showed that Ti doping improved electrical conductivity. Impedance analysis was performed using an equivalent circuit, showing one relaxation process and suggesting dominant grain boundary contribution.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Structural and Electrical Properties of Ti Doped alpha-Fe2O3
EP  - 292
IS  - 3
SP  - 281
VL  - 45
DO  - 10.2298/SOS1303281N
ER  - 

@article{
author = "Nikolić, Maria Vesna and Sekulic, Dalibor L and Nikolić, Nenad and Slankamenac, Milos P and Aleksić, Obrad and Danninger, H and Halwax, E and Pavlović, Vladimir B and Nikolić, Pantelija M.",
year = "2013",
abstract = "In this work we have analyzed the effects of Ti doping on structural and electrical properties of alpha-Fe2O3. When the amount of added Ti (5 wt.% TiO2) was within the solubility degree and XRD, SEM and EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3), c= 13.7484(1) slightly increased due to incorporation of Ti into the rhombohedral hematite lattice. Higher amounts of Ti (10 wt.% TiO2) resulted in the formation of pseudobrookite, besides hematite, confirmed by SEM and EDS analysis. Studies of electric properties in the temperature range 25-225oC at different frequencies (100-1Mz) showed that Ti doping improved electrical conductivity. Impedance analysis was performed using an equivalent circuit, showing one relaxation process and suggesting dominant grain boundary contribution.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Structural and Electrical Properties of Ti Doped alpha-Fe2O3",
pages = "292-281",
number = "3",
volume = "45",
doi = "10.2298/SOS1303281N"
}

Nikolić, M. V., Sekulic, D. L., Nikolić, N., Slankamenac, M. P., Aleksić, O., Danninger, H., Halwax, E., Pavlović, V. B.,& Nikolić, P. M.. (2013). Structural and Electrical Properties of Ti Doped alpha-Fe2O3. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 45(3), 281-292.
https://doi.org/10.2298/SOS1303281N

Nikolić MV, Sekulic DL, Nikolić N, Slankamenac MP, Aleksić O, Danninger H, Halwax E, Pavlović VB, Nikolić PM. Structural and Electrical Properties of Ti Doped alpha-Fe2O3. in Science of Sintering. 2013;45(3):281-292.
doi:10.2298/SOS1303281N .

Nikolić, Maria Vesna, Sekulic, Dalibor L, Nikolić, Nenad, Slankamenac, Milos P, Aleksić, Obrad, Danninger, H, Halwax, E, Pavlović, Vladimir B, Nikolić, Pantelija M., "Structural and Electrical Properties of Ti Doped alpha-Fe2O3" in Science of Sintering, 45, no. 3 (2013):281-292,
https://doi.org/10.2298/SOS1303281N . .

TY  - JOUR
AU  - Nikolić, Pantelija M.
AU  - Paraskevopoulos, K.M.
AU  - Aleksić, Obrad
AU  - Vujatović, Stevan S
AU  - Vasiljević-Radović, Dana
AU  - Zorba, T.T.
AU  - Blagojević, V.
AU  - Nikolić, Nenad
AU  - Radovanović, M.
AU  - Nikolić, Maria Vesna
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/621
AB  - Single crystal samples of PbTe doped with PbI2 were made using the Bridgman technique. Far infrared reflectivity diagrams of PbTe doped with 0.4 at% and 0.6 at% Iodine were measured and numerically analyzed. A plasma resonance at about 650 cm(-1) with the reflectivity minima very close to zero was observed for both samples. Thermal diffusivity was determined for the same samples using the photoacoustic method with a transmission detection configuration and the values of the minority free carrier (holes) mobility were calculated.
PB  - National Institute of Optoelectronics
T2  - Optoelectronics and Advanced Materials, Rapid Communications
T1  - Far infrared and photoacoustic characterization of iodine doped PbTe
EP  - 356
IS  - 3-4
SP  - 352
VL  - 6
UR  - https://hdl.handle.net/21.15107/rcub_cer_942
ER  - 

@article{
author = "Nikolić, Pantelija M. and Paraskevopoulos, K.M. and Aleksić, Obrad and Vujatović, Stevan S and Vasiljević-Radović, Dana and Zorba, T.T. and Blagojević, V. and Nikolić, Nenad and Radovanović, M. and Nikolić, Maria Vesna",
year = "2012",
abstract = "Single crystal samples of PbTe doped with PbI2 were made using the Bridgman technique. Far infrared reflectivity diagrams of PbTe doped with 0.4 at% and 0.6 at% Iodine were measured and numerically analyzed. A plasma resonance at about 650 cm(-1) with the reflectivity minima very close to zero was observed for both samples. Thermal diffusivity was determined for the same samples using the photoacoustic method with a transmission detection configuration and the values of the minority free carrier (holes) mobility were calculated.",
publisher = "National Institute of Optoelectronics",
journal = "Optoelectronics and Advanced Materials, Rapid Communications",
title = "Far infrared and photoacoustic characterization of iodine doped PbTe",
pages = "356-352",
number = "3-4",
volume = "6",
url = "https://hdl.handle.net/21.15107/rcub_cer_942"
}

Nikolić, P. M., Paraskevopoulos, K.M., Aleksić, O., Vujatović, S. S., Vasiljević-Radović, D., Zorba, T.T., Blagojević, V., Nikolić, N., Radovanović, M.,& Nikolić, M. V.. (2012). Far infrared and photoacoustic characterization of iodine doped PbTe. in Optoelectronics and Advanced Materials, Rapid Communications
National Institute of Optoelectronics., 6(3-4), 352-356.
https://hdl.handle.net/21.15107/rcub_cer_942

Nikolić PM, Paraskevopoulos K, Aleksić O, Vujatović SS, Vasiljević-Radović D, Zorba T, Blagojević V, Nikolić N, Radovanović M, Nikolić MV. Far infrared and photoacoustic characterization of iodine doped PbTe. in Optoelectronics and Advanced Materials, Rapid Communications. 2012;6(3-4):352-356.
https://hdl.handle.net/21.15107/rcub_cer_942 .

Nikolić, Pantelija M., Paraskevopoulos, K.M., Aleksić, Obrad, Vujatović, Stevan S, Vasiljević-Radović, Dana, Zorba, T.T., Blagojević, V., Nikolić, Nenad, Radovanović, M., Nikolić, Maria Vesna, "Far infrared and photoacoustic characterization of iodine doped PbTe" in Optoelectronics and Advanced Materials, Rapid Communications, 6, no. 3-4 (2012):352-356,
https://hdl.handle.net/21.15107/rcub_cer_942 .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Slankamenac, Milos P
AU  - Nikolić, Nenad
AU  - Sekulic, Dalibor L
AU  - Aleksić, Obrad
AU  - Mitrić, Miodrag
AU  - Ivetić, Tamara B.
AU  - Pavlović, Vladimir B
AU  - Nikolić, Pantelija M.
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/557
AB  - The effects of Zn-doping on the dielectric behavior and electrical properties of bulk alpha-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, with the amount of spinel phase increasing with increasing Zn content. Scanning electron microscopy analysis combined with energy dispersive X-ray spectroscopy showed that the Zn-bearing phase occurred in the form of individual spinel ZnFe2O4 grains in a hematite matrix. DC conductivity was measured in the temperature range 25-225 degrees C (298-498 K). Impedance spectroscopy measurements in the same temperature range were carried out in the frequency range 100Hz to 10 MHz. Increase in the Zn content resulted in increased electrical conductivity and higher values of the dielectric constant. The resistance and capacitance of grains and grain boundaries were analyzed by modeling the experimental results using an equivalent circuit.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn
EP  - 321
IS  - 3
SP  - 307
VL  - 44
DO  - 10.2298/SOS1203307N
ER  - 

@article{
author = "Nikolić, Maria Vesna and Slankamenac, Milos P and Nikolić, Nenad and Sekulic, Dalibor L and Aleksić, Obrad and Mitrić, Miodrag and Ivetić, Tamara B. and Pavlović, Vladimir B and Nikolić, Pantelija M.",
year = "2012",
abstract = "The effects of Zn-doping on the dielectric behavior and electrical properties of bulk alpha-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, with the amount of spinel phase increasing with increasing Zn content. Scanning electron microscopy analysis combined with energy dispersive X-ray spectroscopy showed that the Zn-bearing phase occurred in the form of individual spinel ZnFe2O4 grains in a hematite matrix. DC conductivity was measured in the temperature range 25-225 degrees C (298-498 K). Impedance spectroscopy measurements in the same temperature range were carried out in the frequency range 100Hz to 10 MHz. Increase in the Zn content resulted in increased electrical conductivity and higher values of the dielectric constant. The resistance and capacitance of grains and grain boundaries were analyzed by modeling the experimental results using an equivalent circuit.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn",
pages = "321-307",
number = "3",
volume = "44",
doi = "10.2298/SOS1203307N"
}

Nikolić, M. V., Slankamenac, M. P., Nikolić, N., Sekulic, D. L., Aleksić, O., Mitrić, M., Ivetić, T. B., Pavlović, V. B.,& Nikolić, P. M.. (2012). Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 44(3), 307-321.
https://doi.org/10.2298/SOS1203307N

Nikolić MV, Slankamenac MP, Nikolić N, Sekulic DL, Aleksić O, Mitrić M, Ivetić TB, Pavlović VB, Nikolić PM. Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn. in Science of Sintering. 2012;44(3):307-321.
doi:10.2298/SOS1203307N .

Nikolić, Maria Vesna, Slankamenac, Milos P, Nikolić, Nenad, Sekulic, Dalibor L, Aleksić, Obrad, Mitrić, Miodrag, Ivetić, Tamara B., Pavlović, Vladimir B, Nikolić, Pantelija M., "Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn" in Science of Sintering, 44, no. 3 (2012):307-321,
https://doi.org/10.2298/SOS1203307N . .

TY  - JOUR
AU  - Nikolić, Pantelija M.
AU  - Paraskevopoulos, K.M.
AU  - Zachariadis, G
AU  - Valasiadis, O
AU  - Zorba, T.T.
AU  - Vujatović, Stevan S
AU  - Nikolić, Nenad
AU  - Aleksić, Obrad
AU  - Ivetić, Tamara B.
AU  - Cvetković, Olga G
AU  - Blagojević, Vladimir D
AU  - Nikolić, Maria Vesna
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/507
AB  - PbTe single crystals, doped with B, were grown using the Bridgman method. Far infrared spectra were measured in the temperature range between 10 K and room temperature. The experimental spectra were numerically analyzed, and optical parameters were calculated. Local impurity modes of boron were observed at about 150 and 240 cm(-1). For all samples, after FIR measurements, the content of boron was measured using inductively coupled plasma atomic emission spectrometry. Optical mobility of free carriers was calculated and it was the highest for the sample with only 0.014 at.% of boron in PbTe. A negative photoconductivity effect at 130 K for PbTe + B was also observed.
PB  - Springer, New York
T2  - Journal of Materials Science
T1  - Far infrared study of local impurity modes of Boron-doped PbTe
EP  - 2389
IS  - 5
SP  - 2384
VL  - 47
DO  - 10.1007/s10853-011-6057-8
ER  - 

@article{
author = "Nikolić, Pantelija M. and Paraskevopoulos, K.M. and Zachariadis, G and Valasiadis, O and Zorba, T.T. and Vujatović, Stevan S and Nikolić, Nenad and Aleksić, Obrad and Ivetić, Tamara B. and Cvetković, Olga G and Blagojević, Vladimir D and Nikolić, Maria Vesna",
year = "2012",
abstract = "PbTe single crystals, doped with B, were grown using the Bridgman method. Far infrared spectra were measured in the temperature range between 10 K and room temperature. The experimental spectra were numerically analyzed, and optical parameters were calculated. Local impurity modes of boron were observed at about 150 and 240 cm(-1). For all samples, after FIR measurements, the content of boron was measured using inductively coupled plasma atomic emission spectrometry. Optical mobility of free carriers was calculated and it was the highest for the sample with only 0.014 at.% of boron in PbTe. A negative photoconductivity effect at 130 K for PbTe + B was also observed.",
publisher = "Springer, New York",
journal = "Journal of Materials Science",
title = "Far infrared study of local impurity modes of Boron-doped PbTe",
pages = "2389-2384",
number = "5",
volume = "47",
doi = "10.1007/s10853-011-6057-8"
}

Nikolić, P. M., Paraskevopoulos, K.M., Zachariadis, G., Valasiadis, O., Zorba, T.T., Vujatović, S. S., Nikolić, N., Aleksić, O., Ivetić, T. B., Cvetković, O. G., Blagojević, V. D.,& Nikolić, M. V.. (2012). Far infrared study of local impurity modes of Boron-doped PbTe. in Journal of Materials Science
Springer, New York., 47(5), 2384-2389.
https://doi.org/10.1007/s10853-011-6057-8

Nikolić PM, Paraskevopoulos K, Zachariadis G, Valasiadis O, Zorba T, Vujatović SS, Nikolić N, Aleksić O, Ivetić TB, Cvetković OG, Blagojević VD, Nikolić MV. Far infrared study of local impurity modes of Boron-doped PbTe. in Journal of Materials Science. 2012;47(5):2384-2389.
doi:10.1007/s10853-011-6057-8 .

Nikolić, Pantelija M., Paraskevopoulos, K.M., Zachariadis, G, Valasiadis, O, Zorba, T.T., Vujatović, Stevan S, Nikolić, Nenad, Aleksić, Obrad, Ivetić, Tamara B., Cvetković, Olga G, Blagojević, Vladimir D, Nikolić, Maria Vesna, "Far infrared study of local impurity modes of Boron-doped PbTe" in Journal of Materials Science, 47, no. 5 (2012):2384-2389,
https://doi.org/10.1007/s10853-011-6057-8 . .