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  - Curcic, M
AU  - Hadzic, B.B
AU  - Gilic, M
AU  - Radojevic, I
AU  - Bjelajac, Andjelika
AU  - Radovic, Ivana
AU  - Timotijević, Dejan
AU  - Romcevic, Maja
AU  - Trajic, Jelena
AU  - Romcevic, Nebojsa
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3045
AB  - The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite.
PB  - ELSEVIER
T2  - Physica E: Low-Dimensional Systems and Nanostructures
T1  - Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites
VL  - 115
DO  - https://doi.org/10.1016/j.physe.2019.113708
ER  - 

@article{
author = "Curcic, M and Hadzic, B.B and Gilic, M and Radojevic, I and Bjelajac, Andjelika and Radovic, Ivana and Timotijević, Dejan and Romcevic, Maja and Trajic, Jelena and Romcevic, Nebojsa",
year = "2020",
abstract = "The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite.",
publisher = "ELSEVIER",
journal = "Physica E: Low-Dimensional Systems and Nanostructures",
title = "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites",
volume = "115",
doi = "https://doi.org/10.1016/j.physe.2019.113708"
}

Curcic, M., Hadzic, B.B, Gilic, M., Radojevic, I., Bjelajac, A., Radovic, I., Timotijević, D., Romcevic, M., Trajic, J.,& Romcevic, N.. (2020). Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E: Low-Dimensional Systems and Nanostructures
ELSEVIER., 115.
https://doi.org/https://doi.org/10.1016/j.physe.2019.113708

Curcic M, Hadzic B, Gilic M, Radojevic I, Bjelajac A, Radovic I, Timotijević D, Romcevic M, Trajic J, Romcevic N. Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E: Low-Dimensional Systems and Nanostructures. 2020;115.
doi:https://doi.org/10.1016/j.physe.2019.113708 .

Curcic, M, Hadzic, B.B, Gilic, M, Radojevic, I, Bjelajac, Andjelika, Radovic, Ivana, Timotijević, Dejan, Romcevic, Maja, Trajic, Jelena, Romcevic, Nebojsa, "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites" in Physica E: Low-Dimensional Systems and Nanostructures, 115 (2020),
https://doi.org/https://doi.org/10.1016/j.physe.2019.113708 . .

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  - Gilic, M
AU  - Trajic, J
AU  - Romcevic, N
AU  - Romcevic, M
AU  - Timotijević, Dejan
AU  - Stanisic, G
AU  - Yahia, I.S
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3023
AB  - The properties of CdS thin films were investigated by applying atomic force microscopy (AFM), Raman and far-infrared spectroscopy. CdS thin films were prepared by using the thermal evaporation technique under base pressure 2 × 10−5 torr. The quality of these films was investigated by AFM spectroscopy. We applied Raman scattering and far-infrared spectroscopy to investigate the optical properties of CdS thin films, and reveal the existence of Surface Optical Phonon (SOP) mode at 297 cm−1. Effective permittivity of mixture was modeled by Maxwell–Garnet approximation. In the analysis of the far-infrared reflection spectra, a numerical model for calculating the reflectivity coefficient for a system which includes films and substrate was applied.
PB  - Elsevier
T2  - Optical Materials
T1  - Optical properties of CdS thin films
VL  - 35
DO  - https://doi.org/10.1016/j.optmat.2012.12.028
ER  - 

@article{
author = "Gilic, M and Trajic, J and Romcevic, N and Romcevic, M and Timotijević, Dejan and Stanisic, G and Yahia, I.S",
year = "2013",
abstract = "The properties of CdS thin films were investigated by applying atomic force microscopy (AFM), Raman and far-infrared spectroscopy. CdS thin films were prepared by using the thermal evaporation technique under base pressure 2 × 10−5 torr. The quality of these films was investigated by AFM spectroscopy. We applied Raman scattering and far-infrared spectroscopy to investigate the optical properties of CdS thin films, and reveal the existence of Surface Optical Phonon (SOP) mode at 297 cm−1. Effective permittivity of mixture was modeled by Maxwell–Garnet approximation. In the analysis of the far-infrared reflection spectra, a numerical model for calculating the reflectivity coefficient for a system which includes films and substrate was applied.",
publisher = "Elsevier",
journal = "Optical Materials",
title = "Optical properties of CdS thin films",
volume = "35",
doi = "https://doi.org/10.1016/j.optmat.2012.12.028"
}

Gilic, M., Trajic, J., Romcevic, N., Romcevic, M., Timotijević, D., Stanisic, G.,& Yahia, I.S. (2013). Optical properties of CdS thin films. in Optical Materials
Elsevier., 35.
https://doi.org/https://doi.org/10.1016/j.optmat.2012.12.028

Gilic M, Trajic J, Romcevic N, Romcevic M, Timotijević D, Stanisic G, Yahia I. Optical properties of CdS thin films. in Optical Materials. 2013;35.
doi:https://doi.org/10.1016/j.optmat.2012.12.028 .

Gilic, M, Trajic, J, Romcevic, N, Romcevic, M, Timotijević, Dejan, Stanisic, G, Yahia, I.S, "Optical properties of CdS thin films" in Optical Materials, 35 (2013),
https://doi.org/https://doi.org/10.1016/j.optmat.2012.12.028 . .