TY  - JOUR
AU  - Mitric, J.
AU  - Paunović, Novica
AU  - Mitrić, Miodrag
AU  - Ćirković, Jovana
AU  - Gilic, M.
AU  - Romčević, Maja
AU  - Romčević, Nebojša
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1467
AB  - In this paper two methods of preparation of yttrium orthovanadate nanopowders were presented: Solid State Reaction (top - down approach) and Solution Combustion Synthesis (bottom - up approach). For starting structural characterization, X - Ray Powder Diffraction (XPRD) and Field Emission Scanning Electron Microscopy (FESEM) were used. We report the change in reflection spectra in europium doped YVO4 nanopowders with comparison to its bulk analog. In UV-Vis reflection spectra we consider the change in values of band gap in these structures, after resizing it from bulk to nanomaterial. In Far - Infrared (FIR) reflection spectra, we registered the existence of Surface Optical Phonon (SOP) and different multi - phonon processes which alter the reflection spectra of bulk YVO4 . The influence of Eu ions is reflected through multi - phonon processes that occur and are connected with energy transfer from YVO4 lattice to Eu ions. All IR spectra were modeled using classical oscillator model with Drude part added which takes into account the free carrier contribution. Since our samples are distinctively inhomogeneous materials, we use Effective Medium theory in Maxwell Garnett approximation to model its effective dieletric function.
PB  - Elsevier, Amsterdam
T2  - Physica E-Low-Dimensional Systems & Nanostructures
T1  - Surface optical phonon and multi - phonon transitions in YVO4: Eu3+ nanopowders
VL  - 134
DO  - 10.1016/j.physe.2021.114923
ER  - 

@article{
author = "Mitric, J. and Paunović, Novica and Mitrić, Miodrag and Ćirković, Jovana and Gilic, M. and Romčević, Maja and Romčević, Nebojša",
year = "2021",
abstract = "In this paper two methods of preparation of yttrium orthovanadate nanopowders were presented: Solid State Reaction (top - down approach) and Solution Combustion Synthesis (bottom - up approach). For starting structural characterization, X - Ray Powder Diffraction (XPRD) and Field Emission Scanning Electron Microscopy (FESEM) were used. We report the change in reflection spectra in europium doped YVO4 nanopowders with comparison to its bulk analog. In UV-Vis reflection spectra we consider the change in values of band gap in these structures, after resizing it from bulk to nanomaterial. In Far - Infrared (FIR) reflection spectra, we registered the existence of Surface Optical Phonon (SOP) and different multi - phonon processes which alter the reflection spectra of bulk YVO4 . The influence of Eu ions is reflected through multi - phonon processes that occur and are connected with energy transfer from YVO4 lattice to Eu ions. All IR spectra were modeled using classical oscillator model with Drude part added which takes into account the free carrier contribution. Since our samples are distinctively inhomogeneous materials, we use Effective Medium theory in Maxwell Garnett approximation to model its effective dieletric function.",
publisher = "Elsevier, Amsterdam",
journal = "Physica E-Low-Dimensional Systems & Nanostructures",
title = "Surface optical phonon and multi - phonon transitions in YVO4: Eu3+ nanopowders",
volume = "134",
doi = "10.1016/j.physe.2021.114923"
}

Mitric, J., Paunović, N., Mitrić, M., Ćirković, J., Gilic, M., Romčević, M.,& Romčević, N.. (2021). Surface optical phonon and multi - phonon transitions in YVO4: Eu3+ nanopowders. in Physica E-Low-Dimensional Systems & Nanostructures
Elsevier, Amsterdam., 134.
https://doi.org/10.1016/j.physe.2021.114923

Mitric J, Paunović N, Mitrić M, Ćirković J, Gilic M, Romčević M, Romčević N. Surface optical phonon and multi - phonon transitions in YVO4: Eu3+ nanopowders. in Physica E-Low-Dimensional Systems & Nanostructures. 2021;134.
doi:10.1016/j.physe.2021.114923 .

Mitric, J., Paunović, Novica, Mitrić, Miodrag, Ćirković, Jovana, Gilic, M., Romčević, Maja, Romčević, Nebojša, "Surface optical phonon and multi - phonon transitions in YVO4: Eu3+ nanopowders" in Physica E-Low-Dimensional Systems & Nanostructures, 134 (2021),
https://doi.org/10.1016/j.physe.2021.114923 . .

TY  - JOUR
AU  - Mitric, Jelena
AU  - Ralević, Uros
AU  - Mitrić, Miodrag
AU  - Ćirković, Jovana
AU  - Krizan, Gregor
AU  - Romčević, Maja
AU  - Gilic, Martina
AU  - Romčević, Nebojša
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1236
AB  - In this paper, we describe synthesis and characterization of YVO4 and Eu3+-doped YVO4 nanopowders. Two methods of preparation were used-solution combustion synthesis (SCS) and classical ceramic method (CCM)-and compared. Morphology and structure of all samples were characterized with atomic-force microscopy (AFM), X-ray diffraction (XRD), and field-emission scanning electron microscopy (SEM). Raman spectroscopy was used to discuss the isotope-like effect. It is confirmed that doping with Eu ions results in a change of Raman spectra of doped samples-new modes arise, and intensity of existing ones change. Influence of different preparation methods on isotope-like effect is presented with detailed calculations of shifted modes.
PB  - Wiley, Hoboken
T2  - Journal of Raman Spectroscopy
T1  - Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy
EP  - 808
IS  - 6
SP  - 802
VL  - 50
DO  - 10.1002/jrs.5584
ER  - 

@article{
author = "Mitric, Jelena and Ralević, Uros and Mitrić, Miodrag and Ćirković, Jovana and Krizan, Gregor and Romčević, Maja and Gilic, Martina and Romčević, Nebojša",
year = "2019",
abstract = "In this paper, we describe synthesis and characterization of YVO4 and Eu3+-doped YVO4 nanopowders. Two methods of preparation were used-solution combustion synthesis (SCS) and classical ceramic method (CCM)-and compared. Morphology and structure of all samples were characterized with atomic-force microscopy (AFM), X-ray diffraction (XRD), and field-emission scanning electron microscopy (SEM). Raman spectroscopy was used to discuss the isotope-like effect. It is confirmed that doping with Eu ions results in a change of Raman spectra of doped samples-new modes arise, and intensity of existing ones change. Influence of different preparation methods on isotope-like effect is presented with detailed calculations of shifted modes.",
publisher = "Wiley, Hoboken",
journal = "Journal of Raman Spectroscopy",
title = "Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy",
pages = "808-802",
number = "6",
volume = "50",
doi = "10.1002/jrs.5584"
}

Mitric, J., Ralević, U., Mitrić, M., Ćirković, J., Krizan, G., Romčević, M., Gilic, M.,& Romčević, N.. (2019). Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy. in Journal of Raman Spectroscopy
Wiley, Hoboken., 50(6), 802-808.
https://doi.org/10.1002/jrs.5584

Mitric J, Ralević U, Mitrić M, Ćirković J, Krizan G, Romčević M, Gilic M, Romčević N. Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy. in Journal of Raman Spectroscopy. 2019;50(6):802-808.
doi:10.1002/jrs.5584 .

Mitric, Jelena, Ralević, Uros, Mitrić, Miodrag, Ćirković, Jovana, Krizan, Gregor, Romčević, Maja, Gilic, Martina, Romčević, Nebojša, "Isotope-like effect in YVO4:Eu3+ nanopowders: Raman spectroscopy" in Journal of Raman Spectroscopy, 50, no. 6 (2019):802-808,
https://doi.org/10.1002/jrs.5584 . .

TY  - JOUR
AU  - Gilic, M.
AU  - Kostic, R.
AU  - Stojanović, D.
AU  - Romčević, Maja
AU  - Hadzic, B.
AU  - Petrović, M.
AU  - Ralević, U.
AU  - Lazarević, Zorica Z
AU  - Trajic, J.
AU  - Ristic-Djurović, J.
AU  - Ćirković, Jovana
AU  - Romčević, Nebojša
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1151
AB  - In this paper we present photoluminescence measurements of CdSe nanoparticles embedded in transparent glass. Sample is prepared using an original technique, which combines both heat treatment and ultraviolet laser irradiation. Photoluminescence spectra displayed one main emission band at 2.14 eV. We identify this bands energy as basic interband transition in CdSe nanoparticle. We calculated energy of basic (1s(h)-1s(e)) transition in spherical CdSe quantum dot (QD), within infinite potential barrier, in effective-mass approximation. On the basis of this model, average radius of synthesized CdSe QDs is about 3 nm, which is in consistence with AFM measurements and UV-VIS absorption measurements.
PB  - Springer, Dordrecht
T2  - Optical and Quantum Electronics
T1  - Photoluminescence spectroscopy of CdSe nanoparticles embedded in transparent glass
IS  - 7
VL  - 50
DO  - 10.1007/s11082-018-1552-7
ER  - 

@article{
author = "Gilic, M. and Kostic, R. and Stojanović, D. and Romčević, Maja and Hadzic, B. and Petrović, M. and Ralević, U. and Lazarević, Zorica Z and Trajic, J. and Ristic-Djurović, J. and Ćirković, Jovana and Romčević, Nebojša",
year = "2018",
abstract = "In this paper we present photoluminescence measurements of CdSe nanoparticles embedded in transparent glass. Sample is prepared using an original technique, which combines both heat treatment and ultraviolet laser irradiation. Photoluminescence spectra displayed one main emission band at 2.14 eV. We identify this bands energy as basic interband transition in CdSe nanoparticle. We calculated energy of basic (1s(h)-1s(e)) transition in spherical CdSe quantum dot (QD), within infinite potential barrier, in effective-mass approximation. On the basis of this model, average radius of synthesized CdSe QDs is about 3 nm, which is in consistence with AFM measurements and UV-VIS absorption measurements.",
publisher = "Springer, Dordrecht",
journal = "Optical and Quantum Electronics",
title = "Photoluminescence spectroscopy of CdSe nanoparticles embedded in transparent glass",
number = "7",
volume = "50",
doi = "10.1007/s11082-018-1552-7"
}

Gilic, M., Kostic, R., Stojanović, D., Romčević, M., Hadzic, B., Petrović, M., Ralević, U., Lazarević, Z. Z., Trajic, J., Ristic-Djurović, J., Ćirković, J.,& Romčević, N.. (2018). Photoluminescence spectroscopy of CdSe nanoparticles embedded in transparent glass. in Optical and Quantum Electronics
Springer, Dordrecht., 50(7).
https://doi.org/10.1007/s11082-018-1552-7

Gilic M, Kostic R, Stojanović D, Romčević M, Hadzic B, Petrović M, Ralević U, Lazarević ZZ, Trajic J, Ristic-Djurović J, Ćirković J, Romčević N. Photoluminescence spectroscopy of CdSe nanoparticles embedded in transparent glass. in Optical and Quantum Electronics. 2018;50(7).
doi:10.1007/s11082-018-1552-7 .

Gilic, M., Kostic, R., Stojanović, D., Romčević, Maja, Hadzic, B., Petrović, M., Ralević, U., Lazarević, Zorica Z, Trajic, J., Ristic-Djurović, J., Ćirković, Jovana, Romčević, Nebojša, "Photoluminescence spectroscopy of CdSe nanoparticles embedded in transparent glass" in Optical and Quantum Electronics, 50, no. 7 (2018),
https://doi.org/10.1007/s11082-018-1552-7 . .

TY  - JOUR
AU  - Petrović, Milica
AU  - Gilic, Martina
AU  - Ćirković, Jovana
AU  - Romčević, Maja
AU  - Romčević, Nebojša
AU  - Trajic, Jelena
AU  - Yahia, Ibrahim
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1046
AB  - Copper selenide thin films of three different thicknesses have been prepared by vacuum evaporation method on a glass substrate at room temperature. The optical properties of the films were investigated by UV-VIS-NIR spectroscopy and photoluminescence spectroscopy. Surface morphology was investigated by field-emission scanning electron microscopy. Copper selenide exhibits both direct and indirect transitions. The band gap for direct transition is found to be similar to 2.7 eV and that for indirect transition it is similar to 1.70 eV. Photoluminescence spectra of copper selenide thin films have also been analyzed, which show emission peaks at 530, 550, and 760 nm. The latter corresponds to indirect transition in investigated material.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Optical Properties of CuSe Thin Films - Band Gap Determination
EP  - 174
IS  - 2
SP  - 167
VL  - 49
DO  - 10.2298/SOS1702167P
ER  - 

@article{
author = "Petrović, Milica and Gilic, Martina and Ćirković, Jovana and Romčević, Maja and Romčević, Nebojša and Trajic, Jelena and Yahia, Ibrahim",
year = "2017",
abstract = "Copper selenide thin films of three different thicknesses have been prepared by vacuum evaporation method on a glass substrate at room temperature. The optical properties of the films were investigated by UV-VIS-NIR spectroscopy and photoluminescence spectroscopy. Surface morphology was investigated by field-emission scanning electron microscopy. Copper selenide exhibits both direct and indirect transitions. The band gap for direct transition is found to be similar to 2.7 eV and that for indirect transition it is similar to 1.70 eV. Photoluminescence spectra of copper selenide thin films have also been analyzed, which show emission peaks at 530, 550, and 760 nm. The latter corresponds to indirect transition in investigated material.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Optical Properties of CuSe Thin Films - Band Gap Determination",
pages = "174-167",
number = "2",
volume = "49",
doi = "10.2298/SOS1702167P"
}

Petrović, M., Gilic, M., Ćirković, J., Romčević, M., Romčević, N., Trajic, J.,& Yahia, I.. (2017). Optical Properties of CuSe Thin Films - Band Gap Determination. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(2), 167-174.
https://doi.org/10.2298/SOS1702167P

Petrović M, Gilic M, Ćirković J, Romčević M, Romčević N, Trajic J, Yahia I. Optical Properties of CuSe Thin Films - Band Gap Determination. in Science of Sintering. 2017;49(2):167-174.
doi:10.2298/SOS1702167P .

Petrović, Milica, Gilic, Martina, Ćirković, Jovana, Romčević, Maja, Romčević, Nebojša, Trajic, Jelena, Yahia, Ibrahim, "Optical Properties of CuSe Thin Films - Band Gap Determination" in Science of Sintering, 49, no. 2 (2017):167-174,
https://doi.org/10.2298/SOS1702167P . .

TY  - JOUR
AU  - Gilic, Martina
AU  - Petrović, Milica
AU  - Ćirković, Jovana
AU  - Paunović, Novica
AU  - Savic-Sević, Svetlana
AU  - Nikitović, Zeljka
AU  - Romčević, Maja
AU  - Yahia, Ibrahim
AU  - Romčević, Nebojša
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1031
AB  - Thin films of CuSe2 nanoparticles embedded in selenium matrix were prepared by vacuum evaporation method on a glass substrate at room temperature. The optical properties of the films were investigated by photoluminescence spectroscopy (T = 20-300K) and UV-VIS spectroscopy (T = 300K). Surface morphology was investigated by scanning electron microscopy. The band gap for direct transition in CuSe2 was found to be in the range of 2.72-2.75 eV and that for indirect transition is in the range of 1.71-1.75 eV determined by UV-VIS spectroscopy. On the other hand, selenium exhibits direct band gap in the range of 2.33-2.36 eV. All estimated band gaps slightly decrease with the increase of the film thickness. Photoluminescence spectra of the thin films clearly show emission bands at about 1.63 and 2.32 eV at room temperature, with no shift observed with decreasing temperature. A model was proposed for explaining such anomaly.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Low-temperature photoluminescence of CuSe2 nano-objects in selenium thin films
EP  - 135
IS  - 2
SP  - 127
VL  - 11
DO  - 10.2298/PAC1702127G
ER  - 

@article{
author = "Gilic, Martina and Petrović, Milica and Ćirković, Jovana and Paunović, Novica and Savic-Sević, Svetlana and Nikitović, Zeljka and Romčević, Maja and Yahia, Ibrahim and Romčević, Nebojša",
year = "2017",
abstract = "Thin films of CuSe2 nanoparticles embedded in selenium matrix were prepared by vacuum evaporation method on a glass substrate at room temperature. The optical properties of the films were investigated by photoluminescence spectroscopy (T = 20-300K) and UV-VIS spectroscopy (T = 300K). Surface morphology was investigated by scanning electron microscopy. The band gap for direct transition in CuSe2 was found to be in the range of 2.72-2.75 eV and that for indirect transition is in the range of 1.71-1.75 eV determined by UV-VIS spectroscopy. On the other hand, selenium exhibits direct band gap in the range of 2.33-2.36 eV. All estimated band gaps slightly decrease with the increase of the film thickness. Photoluminescence spectra of the thin films clearly show emission bands at about 1.63 and 2.32 eV at room temperature, with no shift observed with decreasing temperature. A model was proposed for explaining such anomaly.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Low-temperature photoluminescence of CuSe2 nano-objects in selenium thin films",
pages = "135-127",
number = "2",
volume = "11",
doi = "10.2298/PAC1702127G"
}

Gilic, M., Petrović, M., Ćirković, J., Paunović, N., Savic-Sević, S., Nikitović, Z., Romčević, M., Yahia, I.,& Romčević, N.. (2017). Low-temperature photoluminescence of CuSe2 nano-objects in selenium thin films. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 11(2), 127-135.
https://doi.org/10.2298/PAC1702127G

Gilic M, Petrović M, Ćirković J, Paunović N, Savic-Sević S, Nikitović Z, Romčević M, Yahia I, Romčević N. Low-temperature photoluminescence of CuSe2 nano-objects in selenium thin films. in Processing and Application of Ceramics. 2017;11(2):127-135.
doi:10.2298/PAC1702127G .

Gilic, Martina, Petrović, Milica, Ćirković, Jovana, Paunović, Novica, Savic-Sević, Svetlana, Nikitović, Zeljka, Romčević, Maja, Yahia, Ibrahim, Romčević, Nebojša, "Low-temperature photoluminescence of CuSe2 nano-objects in selenium thin films" in Processing and Application of Ceramics, 11, no. 2 (2017):127-135,
https://doi.org/10.2298/PAC1702127G . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Vijatović Petrović, Mirjana
AU  - Dohcević-Mitrović, Zorana
AU  - Romčević, Nebojša
AU  - Romčević, Maja
AU  - Paunović, Novica
AU  - Stojanović, Biljana D
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/419
AB  - BaTiO3 ceramic powders were prepared by a complex method based on the Pechini type reaction route and mechanically assisted synthesis. In both ways BaTiO3 ceramics were sintered after 120 min on 1300 degrees C without pre-calcination steps. The crystal structure was investigated by the XRD, IR and Raman spectroscopy. The particle size and morphology of BaTiO3 were examined by XRD and SEM. The XRD results of powders indicate the formation of cubic phase of BaTiO3. It can be observed that in the case of Pechini process BaTiO3 powder is well crystallized but in the case of mechanochemistry process, significant amount of amorphous phase was detected. The sintered BaTiO3 ceramic sample prepared by Pechini process, shows the formation of tetragonal phase. However, IR and Raman spectrum showed a mixture of cubic and tetragonal for BaTiO3 obtained by Pechini process and tetragonal for BaTiO3 obtained by mechanically assisted synthesis.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - The characterization of the barium titanate ceramic powders prepared by the Pechini type reaction route and mechanically assisted synthesis
EP  - 628
IS  - 2
SP  - 623
VL  - 30
DO  - 10.1016/j.jeurceramsoc.2009.08.011
ER  - 

@article{
author = "Lazarević, Zorica Z and Vijatović Petrović, Mirjana and Dohcević-Mitrović, Zorana and Romčević, Nebojša and Romčević, Maja and Paunović, Novica and Stojanović, Biljana D",
year = "2010",
abstract = "BaTiO3 ceramic powders were prepared by a complex method based on the Pechini type reaction route and mechanically assisted synthesis. In both ways BaTiO3 ceramics were sintered after 120 min on 1300 degrees C without pre-calcination steps. The crystal structure was investigated by the XRD, IR and Raman spectroscopy. The particle size and morphology of BaTiO3 were examined by XRD and SEM. The XRD results of powders indicate the formation of cubic phase of BaTiO3. It can be observed that in the case of Pechini process BaTiO3 powder is well crystallized but in the case of mechanochemistry process, significant amount of amorphous phase was detected. The sintered BaTiO3 ceramic sample prepared by Pechini process, shows the formation of tetragonal phase. However, IR and Raman spectrum showed a mixture of cubic and tetragonal for BaTiO3 obtained by Pechini process and tetragonal for BaTiO3 obtained by mechanically assisted synthesis.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "The characterization of the barium titanate ceramic powders prepared by the Pechini type reaction route and mechanically assisted synthesis",
pages = "628-623",
number = "2",
volume = "30",
doi = "10.1016/j.jeurceramsoc.2009.08.011"
}

Lazarević, Z. Z., Vijatović Petrović, M., Dohcević-Mitrović, Z., Romčević, N., Romčević, M., Paunović, N.,& Stojanović, B. D.. (2010). The characterization of the barium titanate ceramic powders prepared by the Pechini type reaction route and mechanically assisted synthesis. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 30(2), 623-628.
https://doi.org/10.1016/j.jeurceramsoc.2009.08.011

Lazarević ZZ, Vijatović Petrović M, Dohcević-Mitrović Z, Romčević N, Romčević M, Paunović N, Stojanović BD. The characterization of the barium titanate ceramic powders prepared by the Pechini type reaction route and mechanically assisted synthesis. in Journal of the European Ceramic Society. 2010;30(2):623-628.
doi:10.1016/j.jeurceramsoc.2009.08.011 .

Lazarević, Zorica Z, Vijatović Petrović, Mirjana, Dohcević-Mitrović, Zorana, Romčević, Nebojša, Romčević, Maja, Paunović, Novica, Stojanović, Biljana D, "The characterization of the barium titanate ceramic powders prepared by the Pechini type reaction route and mechanically assisted synthesis" in Journal of the European Ceramic Society, 30, no. 2 (2010):623-628,
https://doi.org/10.1016/j.jeurceramsoc.2009.08.011 . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana D
AU  - Romčević, Maja
AU  - Romčević, Nebojša
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/409
AB  - Lanthanum and antimony doped barium titanate powders were prepared by polymeric precursors method through Pechini process. Obtained powder was pressed into pellet and sintering was performed at 1300 degrees C for 8 h. The formation of phase and crystal structure of BaTiO3 was carried out by XRD analysis, Raman and IR spectroscopy. Microstructure properties such as grain size distribution and morphology of sintered samples were determined using scanning electron microscope. Therefore, it was analyzed relation between grain size, structure and properties of obtained ceramics. Influence of La- and Sb-doping on barium titanate properties was discussed. Crown
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Structure study of nanosized La- and Sb-doped BaTiO3
EP  - 475
IS  - 1-2
SP  - 472
VL  - 494
DO  - 10.1016/j.jallcom.2010.01.088
ER  - 

@article{
author = "Lazarević, Zorica Z and Vijatović Petrović, Mirjana and Stojanović, Biljana D and Romčević, Maja and Romčević, Nebojša",
year = "2010",
abstract = "Lanthanum and antimony doped barium titanate powders were prepared by polymeric precursors method through Pechini process. Obtained powder was pressed into pellet and sintering was performed at 1300 degrees C for 8 h. The formation of phase and crystal structure of BaTiO3 was carried out by XRD analysis, Raman and IR spectroscopy. Microstructure properties such as grain size distribution and morphology of sintered samples were determined using scanning electron microscope. Therefore, it was analyzed relation between grain size, structure and properties of obtained ceramics. Influence of La- and Sb-doping on barium titanate properties was discussed. Crown",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Structure study of nanosized La- and Sb-doped BaTiO3",
pages = "475-472",
number = "1-2",
volume = "494",
doi = "10.1016/j.jallcom.2010.01.088"
}

Lazarević, Z. Z., Vijatović Petrović, M., Stojanović, B. D., Romčević, M.,& Romčević, N.. (2010). Structure study of nanosized La- and Sb-doped BaTiO3. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 494(1-2), 472-475.
https://doi.org/10.1016/j.jallcom.2010.01.088

Lazarević ZZ, Vijatović Petrović M, Stojanović BD, Romčević M, Romčević N. Structure study of nanosized La- and Sb-doped BaTiO3. in Journal of Alloys and Compounds. 2010;494(1-2):472-475.
doi:10.1016/j.jallcom.2010.01.088 .

Lazarević, Zorica Z, Vijatović Petrović, Mirjana, Stojanović, Biljana D, Romčević, Maja, Romčević, Nebojša, "Structure study of nanosized La- and Sb-doped BaTiO3" in Journal of Alloys and Compounds, 494, no. 1-2 (2010):472-475,
https://doi.org/10.1016/j.jallcom.2010.01.088 . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Romčević, Nebojša
AU  - Romčević, Maja
AU  - Trajic, Jelena M
AU  - Vijatović Petrović, Mirjana
AU  - Bobić, Jelena
AU  - Stojanović, Biljana D
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/407
AB  - Pure and antimony doped barium titanate powders were prepared by polymeric precursors method through Pechini process, which was carried out as a three-stage process from organometallic complex. Obtained powder was pressed into pellets and sintering was performed at 1300 degrees C for 8 h with heating rate of 10 degrees C min(-1). The formation of phase and crystal structure of pure and Sb-doped barium titanate was approved by XRD analysis, Raman and IR spectroscopy. The influence of Sb doping on microstructure of barium titanate ceramics was investigated by scanning electron microscopy. Therefore, the relation between grain size, structure and properties of the obtained ceramics was analyzed. Influence of Sb doping on barium titanate properties was discussed.
PB  - World Scientific Publ Co Pte Ltd, Singapore
T2  - International Journal of Modern Physics B
T1  - Infrared and Raman spectroscopy study of antimony doped barium titanate prepared from organometallic complex
EP  - 681
IS  - 6-7
SP  - 676
VL  - 24
DO  - 10.1142/S0217979210064290
ER  - 

@article{
author = "Lazarević, Zorica Z and Romčević, Nebojša and Romčević, Maja and Trajic, Jelena M and Vijatović Petrović, Mirjana and Bobić, Jelena and Stojanović, Biljana D",
year = "2010",
abstract = "Pure and antimony doped barium titanate powders were prepared by polymeric precursors method through Pechini process, which was carried out as a three-stage process from organometallic complex. Obtained powder was pressed into pellets and sintering was performed at 1300 degrees C for 8 h with heating rate of 10 degrees C min(-1). The formation of phase and crystal structure of pure and Sb-doped barium titanate was approved by XRD analysis, Raman and IR spectroscopy. The influence of Sb doping on microstructure of barium titanate ceramics was investigated by scanning electron microscopy. Therefore, the relation between grain size, structure and properties of the obtained ceramics was analyzed. Influence of Sb doping on barium titanate properties was discussed.",
publisher = "World Scientific Publ Co Pte Ltd, Singapore",
journal = "International Journal of Modern Physics B",
title = "Infrared and Raman spectroscopy study of antimony doped barium titanate prepared from organometallic complex",
pages = "681-676",
number = "6-7",
volume = "24",
doi = "10.1142/S0217979210064290"
}

Lazarević, Z. Z., Romčević, N., Romčević, M., Trajic, J. M., Vijatović Petrović, M., Bobić, J.,& Stojanović, B. D.. (2010). Infrared and Raman spectroscopy study of antimony doped barium titanate prepared from organometallic complex. in International Journal of Modern Physics B
World Scientific Publ Co Pte Ltd, Singapore., 24(6-7), 676-681.
https://doi.org/10.1142/S0217979210064290

Lazarević ZZ, Romčević N, Romčević M, Trajic JM, Vijatović Petrović M, Bobić J, Stojanović BD. Infrared and Raman spectroscopy study of antimony doped barium titanate prepared from organometallic complex. in International Journal of Modern Physics B. 2010;24(6-7):676-681.
doi:10.1142/S0217979210064290 .

Lazarević, Zorica Z, Romčević, Nebojša, Romčević, Maja, Trajic, Jelena M, Vijatović Petrović, Mirjana, Bobić, Jelena, Stojanović, Biljana D, "Infrared and Raman spectroscopy study of antimony doped barium titanate prepared from organometallic complex" in International Journal of Modern Physics B, 24, no. 6-7 (2010):676-681,
https://doi.org/10.1142/S0217979210064290 . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Romčević, Nebojša
AU  - Vijatović Petrović, Mirjana
AU  - Paunović, Novica
AU  - Romčević, Maja
AU  - Stojanović, Biljana D
AU  - Dohcević-Mitrović, Zorana
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/345
AB  - Barium titanate, BaTiO3 ceramic powders were prepared by mechanochemical synthesis and by the Pechini method. A powder mixture of BaO and TiO2 was treated in a planetary ball mill in an air atmosphere for Lip to 1 h, using zirconium oxide vial and zirconium oxide balls as the milling medium. After 60 min BaTiO3 phase was formed. In both ways BaTiO3 ceramics were sintered after 2 h on 1300 degrees C without pre-calcinations step. The heating rate was 10 degrees C min(-1). The formation of phase and crystal structure of BaTiO3 was approved by X-ray diffraction analysis and the Raman spectroscopy. The morphology and microstructure of obtained powders were examined by scanning electron microscopy method. Sharp phase transition from ferroelectric to paraelectric state was observed. The hysteresis loop is very well performed with regular sharp characteristic of ferroelectric materials.
PB  - Polish Acad Sciences Inst Physics, Warsaw
T2  - Acta Physica Polonica A
T1  - Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy
EP  - 810
IS  - 4
SP  - 808
VL  - 115
DO  - 10.12693/APhysPolA.115.808
ER  - 

@article{
author = "Lazarević, Zorica Z and Romčević, Nebojša and Vijatović Petrović, Mirjana and Paunović, Novica and Romčević, Maja and Stojanović, Biljana D and Dohcević-Mitrović, Zorana",
year = "2009",
abstract = "Barium titanate, BaTiO3 ceramic powders were prepared by mechanochemical synthesis and by the Pechini method. A powder mixture of BaO and TiO2 was treated in a planetary ball mill in an air atmosphere for Lip to 1 h, using zirconium oxide vial and zirconium oxide balls as the milling medium. After 60 min BaTiO3 phase was formed. In both ways BaTiO3 ceramics were sintered after 2 h on 1300 degrees C without pre-calcinations step. The heating rate was 10 degrees C min(-1). The formation of phase and crystal structure of BaTiO3 was approved by X-ray diffraction analysis and the Raman spectroscopy. The morphology and microstructure of obtained powders were examined by scanning electron microscopy method. Sharp phase transition from ferroelectric to paraelectric state was observed. The hysteresis loop is very well performed with regular sharp characteristic of ferroelectric materials.",
publisher = "Polish Acad Sciences Inst Physics, Warsaw",
journal = "Acta Physica Polonica A",
title = "Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy",
pages = "810-808",
number = "4",
volume = "115",
doi = "10.12693/APhysPolA.115.808"
}

Lazarević, Z. Z., Romčević, N., Vijatović Petrović, M., Paunović, N., Romčević, M., Stojanović, B. D.,& Dohcević-Mitrović, Z.. (2009). Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy. in Acta Physica Polonica A
Polish Acad Sciences Inst Physics, Warsaw., 115(4), 808-810.
https://doi.org/10.12693/APhysPolA.115.808

Lazarević ZZ, Romčević N, Vijatović Petrović M, Paunović N, Romčević M, Stojanović BD, Dohcević-Mitrović Z. Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy. in Acta Physica Polonica A. 2009;115(4):808-810.
doi:10.12693/APhysPolA.115.808 .

Lazarević, Zorica Z, Romčević, Nebojša, Vijatović Petrović, Mirjana, Paunović, Novica, Romčević, Maja, Stojanović, Biljana D, Dohcević-Mitrović, Zorana, "Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy" in Acta Physica Polonica A, 115, no. 4 (2009):808-810,
https://doi.org/10.12693/APhysPolA.115.808 . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Romčević, Nebojša
AU  - Bobić, Jelena
AU  - Romčević, Maja
AU  - Dohcević-Mitrović, Zorana
AU  - Stojanović, Biljana D
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/324
AB  - Bi-layered structured ferroelectric materials-bismuth titanate, Bi4Ti3O12 (BIT) and barium-bismuth titanate, BaBi4Ti4O15 (BBT) powders were prepared by homogenization and sintering of mixture of stehiometric quantities of bismuth titanate and barium titanate obtained via mechanochemical synthesis. The Bi4Ti3O12 ceramic was obtained at 1000 degrees C for 4 h and BaBi4Ti4O15 ceramic at 1100 degrees C for 4 h. The phase formation and properties of Bi4Ti3O12 and BaBi4Ti4O15 were studied using XRD, Raman spectroscopy, EDS and SEM. Microstructure of Bi4Ti3O12 and BaBi4Ti4O15 exhibits plate-like grains typical for the bi-layered structured material. The Ba2+ addition leads to the change in the microstructure development, particularly in the change of the average grain size. Crown
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Study on bi-layered ceramics powders prepared by the mechanochemical synthesis
EP  - 852
IS  - 1-2
SP  - 848
VL  - 486
DO  - 10.1016/j.jallcom.2009.07.079
ER  - 

@article{
author = "Lazarević, Zorica Z and Romčević, Nebojša and Bobić, Jelena and Romčević, Maja and Dohcević-Mitrović, Zorana and Stojanović, Biljana D",
year = "2009",
abstract = "Bi-layered structured ferroelectric materials-bismuth titanate, Bi4Ti3O12 (BIT) and barium-bismuth titanate, BaBi4Ti4O15 (BBT) powders were prepared by homogenization and sintering of mixture of stehiometric quantities of bismuth titanate and barium titanate obtained via mechanochemical synthesis. The Bi4Ti3O12 ceramic was obtained at 1000 degrees C for 4 h and BaBi4Ti4O15 ceramic at 1100 degrees C for 4 h. The phase formation and properties of Bi4Ti3O12 and BaBi4Ti4O15 were studied using XRD, Raman spectroscopy, EDS and SEM. Microstructure of Bi4Ti3O12 and BaBi4Ti4O15 exhibits plate-like grains typical for the bi-layered structured material. The Ba2+ addition leads to the change in the microstructure development, particularly in the change of the average grain size. Crown",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Study on bi-layered ceramics powders prepared by the mechanochemical synthesis",
pages = "852-848",
number = "1-2",
volume = "486",
doi = "10.1016/j.jallcom.2009.07.079"
}

Lazarević, Z. Z., Romčević, N., Bobić, J., Romčević, M., Dohcević-Mitrović, Z.,& Stojanović, B. D.. (2009). Study on bi-layered ceramics powders prepared by the mechanochemical synthesis. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 486(1-2), 848-852.
https://doi.org/10.1016/j.jallcom.2009.07.079

Lazarević ZZ, Romčević N, Bobić J, Romčević M, Dohcević-Mitrović Z, Stojanović BD. Study on bi-layered ceramics powders prepared by the mechanochemical synthesis. in Journal of Alloys and Compounds. 2009;486(1-2):848-852.
doi:10.1016/j.jallcom.2009.07.079 .

Lazarević, Zorica Z, Romčević, Nebojša, Bobić, Jelena, Romčević, Maja, Dohcević-Mitrović, Zorana, Stojanović, Biljana D, "Study on bi-layered ceramics powders prepared by the mechanochemical synthesis" in Journal of Alloys and Compounds, 486, no. 1-2 (2009):848-852,
https://doi.org/10.1016/j.jallcom.2009.07.079 . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Bobić, Jelena
AU  - Romčević, Nebojša
AU  - Paunović, Novica
AU  - Stojanović, Biljana D
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/305
AB  - Barium-bismuth titanate, BaBi4Ti4O15 (BBT), a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of barium titanate and bismuth titanate obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. The reaction mechanism of BaBi4Ti4O15 and the preparation and characteristics of BBT ceramic powders were studied using XRD, Raman spectroscopy, particle analysis and SEM. The Bi-layered perovskite structure Of BaBi4Ti4O15 ceramic forms at 1100 degrees C for 4 h without a pre-calcination step. The microstructure of BaBi4Ti4O15 exhibits plate-like grains typical for the Bi-layered structured material and spherical and polygonal grains. The Ba2+ addition leads to changes in the microstructure development, particularly in the change of the average grain size.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis
EP  - 335
IS  - 3
SP  - 329
VL  - 41
DO  - 10.2298/SOS0903329L
ER  - 

@article{
author = "Lazarević, Zorica Z and Bobić, Jelena and Romčević, Nebojša and Paunović, Novica and Stojanović, Biljana D",
year = "2009",
abstract = "Barium-bismuth titanate, BaBi4Ti4O15 (BBT), a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of barium titanate and bismuth titanate obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. The reaction mechanism of BaBi4Ti4O15 and the preparation and characteristics of BBT ceramic powders were studied using XRD, Raman spectroscopy, particle analysis and SEM. The Bi-layered perovskite structure Of BaBi4Ti4O15 ceramic forms at 1100 degrees C for 4 h without a pre-calcination step. The microstructure of BaBi4Ti4O15 exhibits plate-like grains typical for the Bi-layered structured material and spherical and polygonal grains. The Ba2+ addition leads to changes in the microstructure development, particularly in the change of the average grain size.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis",
pages = "335-329",
number = "3",
volume = "41",
doi = "10.2298/SOS0903329L"
}

Lazarević, Z. Z., Bobić, J., Romčević, N., Paunović, N.,& Stojanović, B. D.. (2009). Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 41(3), 329-335.
https://doi.org/10.2298/SOS0903329L

Lazarević ZZ, Bobić J, Romčević N, Paunović N, Stojanović BD. Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in Science of Sintering. 2009;41(3):329-335.
doi:10.2298/SOS0903329L .

Lazarević, Zorica Z, Bobić, Jelena, Romčević, Nebojša, Paunović, Novica, Stojanović, Biljana D, "Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis" in Science of Sintering, 41, no. 3 (2009):329-335,
https://doi.org/10.2298/SOS0903329L . .

TY  - JOUR
AU  - Marinković Stanojević, Zorica
AU  - Romčević, Nebojša
AU  - Stojanović, Biljana D
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/224
AB  - A mixture of starting ZnO and Cr2O3 powders in equimolar quantities was mechanically activated by grinding using a high energy vibro-mil I for 0, 40 and 80 min. The spinet ZnCr2O4 was prepared from activated mixtures by a conventional solid-state reaction at the temperature of 900 degrees C during 240 min. Raman scattering (RS) and Far-infrared (IR) spectroscopy were applied to study the local structure of zinc chromium oxide spinels. We report on an analysis of the vibrational spectra of the spinet ZnCr2O4 structure using both the classical factor-group theory (O-h(7) spectroscopic symmetry) and a local environmental model. The structural modifications were studied on the basis of vibrations of ZnO4 tetrahedral and CrO6 octahedral units building the crystal lattice. The RS and IR line intensities and positions remained in good agreement with the Fd3m space group. The broadness of IR and Raman bands and the fact that more vibration modes than expected were observed, may be attributed to certain disorder in the crystal symmetry of cubic spinet ZnCr2O4. Formation of the defect spinel structure can be assigned to mechanical activation of the starting oxide mixture.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - Spectroscopic study of spinel ZnCr2O4 obtained from mechanically activated ZnO-Cr2O3 mixtures
EP  - 907
IS  - 2-3
SP  - 903
VL  - 27
DO  - 10.1016/j.jeurceramsoc.2006.04.057
ER  - 

@article{
author = "Marinković Stanojević, Zorica and Romčević, Nebojša and Stojanović, Biljana D",
year = "2007",
abstract = "A mixture of starting ZnO and Cr2O3 powders in equimolar quantities was mechanically activated by grinding using a high energy vibro-mil I for 0, 40 and 80 min. The spinet ZnCr2O4 was prepared from activated mixtures by a conventional solid-state reaction at the temperature of 900 degrees C during 240 min. Raman scattering (RS) and Far-infrared (IR) spectroscopy were applied to study the local structure of zinc chromium oxide spinels. We report on an analysis of the vibrational spectra of the spinet ZnCr2O4 structure using both the classical factor-group theory (O-h(7) spectroscopic symmetry) and a local environmental model. The structural modifications were studied on the basis of vibrations of ZnO4 tetrahedral and CrO6 octahedral units building the crystal lattice. The RS and IR line intensities and positions remained in good agreement with the Fd3m space group. The broadness of IR and Raman bands and the fact that more vibration modes than expected were observed, may be attributed to certain disorder in the crystal symmetry of cubic spinet ZnCr2O4. Formation of the defect spinel structure can be assigned to mechanical activation of the starting oxide mixture.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "Spectroscopic study of spinel ZnCr2O4 obtained from mechanically activated ZnO-Cr2O3 mixtures",
pages = "907-903",
number = "2-3",
volume = "27",
doi = "10.1016/j.jeurceramsoc.2006.04.057"
}

Marinković Stanojević, Z., Romčević, N.,& Stojanović, B. D.. (2007). Spectroscopic study of spinel ZnCr2O4 obtained from mechanically activated ZnO-Cr2O3 mixtures. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 27(2-3), 903-907.
https://doi.org/10.1016/j.jeurceramsoc.2006.04.057

Marinković Stanojević Z, Romčević N, Stojanović BD. Spectroscopic study of spinel ZnCr2O4 obtained from mechanically activated ZnO-Cr2O3 mixtures. in Journal of the European Ceramic Society. 2007;27(2-3):903-907.
doi:10.1016/j.jeurceramsoc.2006.04.057 .

Marinković Stanojević, Zorica, Romčević, Nebojša, Stojanović, Biljana D, "Spectroscopic study of spinel ZnCr2O4 obtained from mechanically activated ZnO-Cr2O3 mixtures" in Journal of the European Ceramic Society, 27, no. 2-3 (2007):903-907,
https://doi.org/10.1016/j.jeurceramsoc.2006.04.057 . .