TY  - JOUR
AU  - Ćurčić, Milica
AU  - Hadžić, Branka
AU  - Gilić, Martina
AU  - Radojević, Vesna
AU  - Bjelajac, Anđelika
AU  - Radović, Ivana
AU  - Timotijević, Dejan
AU  - Romčević, Maja J.
AU  - Trajić, Jelena
AU  - Romčević, Nebojša Ž.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4459
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, Amsterdam
T2  - Physica E-Low-Dimensional Systems & Nanostructures
T1  - Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites
VL  - 115
DO  - 10.1016/j.physe.2019.113708
ER  - 

@article{
author = "Ćurčić, Milica and Hadžić, Branka and Gilić, Martina and Radojević, Vesna and Bjelajac, Anđelika and Radović, Ivana and Timotijević, Dejan and Romčević, Maja J. and Trajić, Jelena and Romčević, Nebojša Ž.",
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, Amsterdam",
journal = "Physica E-Low-Dimensional Systems & Nanostructures",
title = "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites",
volume = "115",
doi = "10.1016/j.physe.2019.113708"
}

Ćurčić, M., Hadžić, B., Gilić, M., Radojević, V., Bjelajac, A., Radović, I., Timotijević, D., Romčević, M. J., Trajić, J.,& Romčević, N. Ž.. (2020). Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E-Low-Dimensional Systems & Nanostructures
Elsevier, Amsterdam., 115.
https://doi.org/10.1016/j.physe.2019.113708

Ćurčić M, Hadžić B, Gilić M, Radojević V, Bjelajac A, Radović I, Timotijević D, Romčević MJ, Trajić J, Romčević NŽ. Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E-Low-Dimensional Systems & Nanostructures. 2020;115.
doi:10.1016/j.physe.2019.113708 .

Ćurčić, Milica, Hadžić, Branka, Gilić, Martina, Radojević, Vesna, Bjelajac, Anđelika, Radović, Ivana, Timotijević, Dejan, Romčević, Maja J., Trajić, Jelena, Romčević, Nebojša Ž., "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites" in Physica E-Low-Dimensional Systems & Nanostructures, 115 (2020),
https://doi.org/10.1016/j.physe.2019.113708 . .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Z.
AU  - Radojević, Vesna
AU  - Rabasović, Maja S.
AU  - Sević, Dragutin M.
AU  - Rabasović, Mihailo D.
AU  - Romčević, Nebojša Ž.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3910
AB  - The aim of the current work was to assess obtain a single crystal of calcium tungstate doped with neodymium - (CaWO4:Nd3+), and after that, the crystal was characterized with various spectroscopic methods. The single crystal was grown from the melt using the Czochralski method in air. By optimizing growth conditions,  lt 001 gt -oriented CaWO4:Nd3+ crystalc up to 10 mm in diameter were grown. Number of dislocations in obtained crystal was 10(2) per cm(2). Micro hardness was measured with the Vickers pyramid. Anisotropy in  lt 001 gt  direction was not observed. Selected CaWO4:Nd3+ single crystal was cut into several tiles with the diamond saw. The plates were polished with a diamond paste. The crystal structure is confirmed by X-ray diffraction. The obtained crystal was studied by Raman and infrared spectroscopy. Seven Raman and six IR optical active modes predicted by group theory are observed. FTIR confirmed the occurrence of all the functional groups and bonds in this material. From the FTIR spectrum, a strong peak of 862 cm(-1) has been obtained due to the stretching vibration of WO42- in scheelite structure, and a weak but sharp band at 433 cm(-1) has been noticed due to the metal-oxygen (Ca-O) band. Estimated luminescence lifetime of F-4(5/2) - the I-4(9/2) transition is about 120 mu s; estimated luminescence lifetime of F-4(3/2) - the I-4(9/2) transition is about 140 mu s. All performed investigations show that the obtained CaWO4:Nd3+ single crystal has good optical quality, which was the goal of this work.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy
EP  - 455
IS  - 4
SP  - 445
VL  - 50
DO  - 10.2298/SOS1804445A
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Z. and Radojević, Vesna and Rabasović, Maja S. and Sević, Dragutin M. and Rabasović, Mihailo D. and Romčević, Nebojša Ž.",
year = "2018",
abstract = "The aim of the current work was to assess obtain a single crystal of calcium tungstate doped with neodymium - (CaWO4:Nd3+), and after that, the crystal was characterized with various spectroscopic methods. The single crystal was grown from the melt using the Czochralski method in air. By optimizing growth conditions,  lt 001 gt -oriented CaWO4:Nd3+ crystalc up to 10 mm in diameter were grown. Number of dislocations in obtained crystal was 10(2) per cm(2). Micro hardness was measured with the Vickers pyramid. Anisotropy in  lt 001 gt  direction was not observed. Selected CaWO4:Nd3+ single crystal was cut into several tiles with the diamond saw. The plates were polished with a diamond paste. The crystal structure is confirmed by X-ray diffraction. The obtained crystal was studied by Raman and infrared spectroscopy. Seven Raman and six IR optical active modes predicted by group theory are observed. FTIR confirmed the occurrence of all the functional groups and bonds in this material. From the FTIR spectrum, a strong peak of 862 cm(-1) has been obtained due to the stretching vibration of WO42- in scheelite structure, and a weak but sharp band at 433 cm(-1) has been noticed due to the metal-oxygen (Ca-O) band. Estimated luminescence lifetime of F-4(5/2) - the I-4(9/2) transition is about 120 mu s; estimated luminescence lifetime of F-4(3/2) - the I-4(9/2) transition is about 140 mu s. All performed investigations show that the obtained CaWO4:Nd3+ single crystal has good optical quality, which was the goal of this work.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy",
pages = "455-445",
number = "4",
volume = "50",
doi = "10.2298/SOS1804445A"
}

Abozaid, R. M., Lazarević, Z. Z., Radojević, V., Rabasović, M. S., Sević, D. M., Rabasović, M. D.,& Romčević, N. Ž.. (2018). Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(4), 445-455.
https://doi.org/10.2298/SOS1804445A

Abozaid RM, Lazarević ZZ, Radojević V, Rabasović MS, Sević DM, Rabasović MD, Romčević NŽ. Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy. in Science of Sintering. 2018;50(4):445-455.
doi:10.2298/SOS1804445A .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Z., Radojević, Vesna, Rabasović, Maja S., Sević, Dragutin M., Rabasović, Mihailo D., Romčević, Nebojša Ž., "Characterization of Neodymium Doped Calcium Tungstate Single Crystal by Raman, IR and Luminescence Spectroscopy" in Science of Sintering, 50, no. 4 (2018):445-455,
https://doi.org/10.2298/SOS1804445A . .

TY  - JOUR
AU  - Brajović, Ljiljana
AU  - Stojanović, Dušica
AU  - Mihailović, Peđa
AU  - Marković, Smilja
AU  - Romčević, Maja J.
AU  - Mitrić, Miodrag
AU  - Lazović, Vladimir M.
AU  - Dramlić, Dragan
AU  - Petricević, Slobodan
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3669
AB  - Bismuth germanium oxide Bi12GeO20 (BGO) has very interesting electrical, optical and magnetic properties. In order to make devices based on this material more flexible, its powder was used for preparing polymer composites. This study reports investigation of the effects of using different solvents and polymers in preparation of BGO composite on the microstructural and optical behaviour of the resulting material. Preparation of such composites by a solution casting method is described. Poly (methyl methacrylate) (PMMA) and polystyrene (PS)) were used as matrix materials and acetone and chloroform as solvents. Their microstructure and the quality of BGO dispersion and deaggregation in polymer matrix were analyzed by SEM, Raman, XRD and optical spectroscopy. The influence of particle size distribution, their shapes, and concentration on the optical transmission is calculated based on Mie scattering theory and discussed, too.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Preparation and characterization of bismuth germanium oxide (BGO) polymer composites
EP  - 849
SP  - 841
VL  - 695
DO  - 10.1016/j.jallcom.2016.10.140
ER  - 

@article{
author = "Brajović, Ljiljana and Stojanović, Dušica and Mihailović, Peđa and Marković, Smilja and Romčević, Maja J. and Mitrić, Miodrag and Lazović, Vladimir M. and Dramlić, Dragan and Petricević, Slobodan and Romčević, Nebojša Ž.",
year = "2017",
abstract = "Bismuth germanium oxide Bi12GeO20 (BGO) has very interesting electrical, optical and magnetic properties. In order to make devices based on this material more flexible, its powder was used for preparing polymer composites. This study reports investigation of the effects of using different solvents and polymers in preparation of BGO composite on the microstructural and optical behaviour of the resulting material. Preparation of such composites by a solution casting method is described. Poly (methyl methacrylate) (PMMA) and polystyrene (PS)) were used as matrix materials and acetone and chloroform as solvents. Their microstructure and the quality of BGO dispersion and deaggregation in polymer matrix were analyzed by SEM, Raman, XRD and optical spectroscopy. The influence of particle size distribution, their shapes, and concentration on the optical transmission is calculated based on Mie scattering theory and discussed, too.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Preparation and characterization of bismuth germanium oxide (BGO) polymer composites",
pages = "849-841",
volume = "695",
doi = "10.1016/j.jallcom.2016.10.140"
}

Brajović, L., Stojanović, D., Mihailović, P., Marković, S., Romčević, M. J., Mitrić, M., Lazović, V. M., Dramlić, D., Petricević, S.,& Romčević, N. Ž.. (2017). Preparation and characterization of bismuth germanium oxide (BGO) polymer composites. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 695, 841-849.
https://doi.org/10.1016/j.jallcom.2016.10.140

Brajović L, Stojanović D, Mihailović P, Marković S, Romčević MJ, Mitrić M, Lazović VM, Dramlić D, Petricević S, Romčević NŽ. Preparation and characterization of bismuth germanium oxide (BGO) polymer composites. in Journal of Alloys and Compounds. 2017;695:841-849.
doi:10.1016/j.jallcom.2016.10.140 .

Brajović, Ljiljana, Stojanović, Dušica, Mihailović, Peđa, Marković, Smilja, Romčević, Maja J., Mitrić, Miodrag, Lazović, Vladimir M., Dramlić, Dragan, Petricević, Slobodan, Romčević, Nebojša Ž., "Preparation and characterization of bismuth germanium oxide (BGO) polymer composites" in Journal of Alloys and Compounds, 695 (2017):841-849,
https://doi.org/10.1016/j.jallcom.2016.10.140 . .

TY  - JOUR
AU  - Elswie, Hana Ibrahim
AU  - Lazarević, Zorica Z.
AU  - Radojević, Vesna
AU  - Gilić, Martina
AU  - Rabasović, Maja S.
AU  - Sević, Dragutin M.
AU  - Romčević, Nebojša Ž.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3420
AB  - It must be noted that the main objective of this study was to obtain single crystals of calcium fluoride - CaF2, and after that the crystals were characterized with various spectroscopic methods. The crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt  111 gt  oriented CaF2 crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals was 5x10(4) - 2x10(5) per cm(2). Selected CaF2 single crystal is cut into several tiles with the diamond saw. The plates were polished, first with the silicon carbide, then the paraffin oil, and finally with a diamond paste. The obtained crystal w.s studied by Raman and infrared - IR spectroscopy. The crystal structure is confirmed by X-ray diffraction (XRD). One Raman and two IR optical modes predicted by group theory are observed. A low photoluminescence testifies that the concentration of oxygen defects within the host CaF2 is small. All performed investigations show that the obtained CaF2 single crystal has good optical quality, which was the goal of this work.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals
EP  - 341
IS  - 3
SP  - 333
VL  - 48
DO  - 10.2298/SOS1603333E
ER  - 

@article{
author = "Elswie, Hana Ibrahim and Lazarević, Zorica Z. and Radojević, Vesna and Gilić, Martina and Rabasović, Maja S. and Sević, Dragutin M. and Romčević, Nebojša Ž.",
year = "2016",
abstract = "It must be noted that the main objective of this study was to obtain single crystals of calcium fluoride - CaF2, and after that the crystals were characterized with various spectroscopic methods. The crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt  111 gt  oriented CaF2 crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals was 5x10(4) - 2x10(5) per cm(2). Selected CaF2 single crystal is cut into several tiles with the diamond saw. The plates were polished, first with the silicon carbide, then the paraffin oil, and finally with a diamond paste. The obtained crystal w.s studied by Raman and infrared - IR spectroscopy. The crystal structure is confirmed by X-ray diffraction (XRD). One Raman and two IR optical modes predicted by group theory are observed. A low photoluminescence testifies that the concentration of oxygen defects within the host CaF2 is small. All performed investigations show that the obtained CaF2 single crystal has good optical quality, which was the goal of this work.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals",
pages = "341-333",
number = "3",
volume = "48",
doi = "10.2298/SOS1603333E"
}

Elswie, H. I., Lazarević, Z. Z., Radojević, V., Gilić, M., Rabasović, M. S., Sević, D. M.,& Romčević, N. Ž.. (2016). The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 48(3), 333-341.
https://doi.org/10.2298/SOS1603333E

Elswie HI, Lazarević ZZ, Radojević V, Gilić M, Rabasović MS, Sević DM, Romčević NŽ. The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals. in Science of Sintering. 2016;48(3):333-341.
doi:10.2298/SOS1603333E .

Elswie, Hana Ibrahim, Lazarević, Zorica Z., Radojević, Vesna, Gilić, Martina, Rabasović, Maja S., Sević, Dragutin M., Romčević, Nebojša Ž., "The Bridgman Method Growth and Spectroscopic Characterization of Calcium Fluoride Single Crystals" in Science of Sintering, 48, no. 3 (2016):333-341,
https://doi.org/10.2298/SOS1603333E . .

TY  - JOUR
AU  - Elswie, Hana Ibrahim
AU  - Kostić, Slobodanka
AU  - Radojević, Vesna
AU  - Romčević, Nebojša Ž.
AU  - Hadžić, Branka
AU  - Trajić, Jelena
AU  - Lazarević, Zorica Z.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3334
AB  - Calcium fluoride - CaF2 single crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt 111 gt -oriented CaF2, crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals which were made by the method of Bridgman was 5x10(4) - 2x10(5) per cm(2). In this paper we used XRD, Raman spectroscopy and the measurement of transmission in the mid IR-range to investigated structural and optical properties of obtained CaF2 single crystals.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method
EP  - 525
IS  - 7-8
SP  - 522
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3334
ER  - 

@article{
author = "Elswie, Hana Ibrahim and Kostić, Slobodanka and Radojević, Vesna and Romčević, Nebojša Ž. and Hadžić, Branka and Trajić, Jelena and Lazarević, Zorica Z.",
year = "2016",
abstract = "Calcium fluoride - CaF2 single crystals were grown using the Bridgman technique. By optimizing growth conditions,  lt 111 gt -oriented CaF2, crystals up to 20 mm in diameter were grown. Number of dislocations in CaF2 crystals which were made by the method of Bridgman was 5x10(4) - 2x10(5) per cm(2). In this paper we used XRD, Raman spectroscopy and the measurement of transmission in the mid IR-range to investigated structural and optical properties of obtained CaF2 single crystals.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method",
pages = "525-522",
number = "7-8",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3334"
}

Elswie, H. I., Kostić, S., Radojević, V., Romčević, N. Ž., Hadžić, B., Trajić, J.,& Lazarević, Z. Z.. (2016). Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 10(7-8), 522-525.
https://hdl.handle.net/21.15107/rcub_technorep_3334

Elswie HI, Kostić S, Radojević V, Romčević NŽ, Hadžić B, Trajić J, Lazarević ZZ. Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method. in Optoelectronics and Advanced Materials-Rapid Communications. 2016;10(7-8):522-525.
https://hdl.handle.net/21.15107/rcub_technorep_3334 .

Elswie, Hana Ibrahim, Kostić, Slobodanka, Radojević, Vesna, Romčević, Nebojša Ž., Hadžić, Branka, Trajić, Jelena, Lazarević, Zorica Z., "Growth, characterization and optical quality of calcium fluoride single crystals grown by the Bridgman method" in Optoelectronics and Advanced Materials-Rapid Communications, 10, no. 7-8 (2016):522-525,
https://hdl.handle.net/21.15107/rcub_technorep_3334 .

TY  - JOUR
AU  - Kostić, S.
AU  - Lazarević, Zorica Z.
AU  - Radojević, Vesna
AU  - Milutinović, A.
AU  - Romčević, Maja J.
AU  - Romčević, Nebojša Ž.
AU  - Valčić, Andreja
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3044
AB  - Yttrium aluminum garnet (YAG, Y3Al5O12) and yttrium aluminum garnet doped with neodymium (Nd:YAG) single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the transparent YAG and pale pink Nd:YAG single crystals were produced. The obtained crystals were studied by X-ray diffraction, Raman and IR spectroscopy. The crystal structure was confirmed by XRD. The 15 Raman and 17 IR modes were observed. The Raman and IR spectroscopy results are in accordance with X-ray diffraction analysis. The obtained YAG and Nd:YAG single crystals were without core and of good optical quality. The absence of a core was confirmed by viewing polished crystal slices. Also, it is important to emphasize that the obtained Nd:YAG single crystal has a concentration of 0.8 wt.% Nd3(+) that is characteristic for laser materials.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Materials Research Bulletin
T1  - Study of structural and optical properties of YAG and Nd:YAG single crystals
EP  - 87
SP  - 80
VL  - 63
DO  - 10.1016/j.materresbull.2014.11.033
ER  - 

@article{
author = "Kostić, S. and Lazarević, Zorica Z. and Radojević, Vesna and Milutinović, A. and Romčević, Maja J. and Romčević, Nebojša Ž. and Valčić, Andreja",
year = "2015",
abstract = "Yttrium aluminum garnet (YAG, Y3Al5O12) and yttrium aluminum garnet doped with neodymium (Nd:YAG) single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the transparent YAG and pale pink Nd:YAG single crystals were produced. The obtained crystals were studied by X-ray diffraction, Raman and IR spectroscopy. The crystal structure was confirmed by XRD. The 15 Raman and 17 IR modes were observed. The Raman and IR spectroscopy results are in accordance with X-ray diffraction analysis. The obtained YAG and Nd:YAG single crystals were without core and of good optical quality. The absence of a core was confirmed by viewing polished crystal slices. Also, it is important to emphasize that the obtained Nd:YAG single crystal has a concentration of 0.8 wt.% Nd3(+) that is characteristic for laser materials.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Materials Research Bulletin",
title = "Study of structural and optical properties of YAG and Nd:YAG single crystals",
pages = "87-80",
volume = "63",
doi = "10.1016/j.materresbull.2014.11.033"
}

Kostić, S., Lazarević, Z. Z., Radojević, V., Milutinović, A., Romčević, M. J., Romčević, N. Ž.,& Valčić, A.. (2015). Study of structural and optical properties of YAG and Nd:YAG single crystals. in Materials Research Bulletin
Pergamon-Elsevier Science Ltd, Oxford., 63, 80-87.
https://doi.org/10.1016/j.materresbull.2014.11.033

Kostić S, Lazarević ZZ, Radojević V, Milutinović A, Romčević MJ, Romčević NŽ, Valčić A. Study of structural and optical properties of YAG and Nd:YAG single crystals. in Materials Research Bulletin. 2015;63:80-87.
doi:10.1016/j.materresbull.2014.11.033 .

Kostić, S., Lazarević, Zorica Z., Radojević, Vesna, Milutinović, A., Romčević, Maja J., Romčević, Nebojša Ž., Valčić, Andreja, "Study of structural and optical properties of YAG and Nd:YAG single crystals" in Materials Research Bulletin, 63 (2015):80-87,
https://doi.org/10.1016/j.materresbull.2014.11.033 . .

TY  - JOUR
AU  - Dukali, R. M.
AU  - Radović, I.
AU  - Stojanović, Dušica
AU  - Uskoković, Petar
AU  - Romčević, Nebojša Ž.
AU  - Radojević, Vesna
AU  - Aleksić, Radoslav
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2805
AB  - This paper investigates processing and characterization of polymer composite material PMMA-Bi12SiO20 (BSO). Thin films of pure PMMA and composites with 0.5 and 1.0 wt% of Bi12SiO20 powder were made using solution casting method. Characterization of starting components and composites was performed with XRD, FTIR, Raman spectroscopy, SEM, DCS, tensile tests, nanoindentation and spectroscopic ellipsometry method in order to obtain information of their morphology, structure, thermal stability, mechanical and optical properties. Refractive index measurements using spectroscopic ellipsometry method have shown that refractive index of composites increases with the powder content. Nanoindentation and tensile tests have shown mechanical improvements with the addition of the crystal through Young's and reduced Young's modulus and hardness values. DSC analysis has shown an increase in T-g for composite with BSO.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Preparation, characterization and mechanical properties of Bi12SiO20-PMMA composite films
EP  - 381
SP  - 376
VL  - 583
DO  - 10.1016/j.jallcom.2013.08.206
ER  - 

@article{
author = "Dukali, R. M. and Radović, I. and Stojanović, Dušica and Uskoković, Petar and Romčević, Nebojša Ž. and Radojević, Vesna and Aleksić, Radoslav",
year = "2014",
abstract = "This paper investigates processing and characterization of polymer composite material PMMA-Bi12SiO20 (BSO). Thin films of pure PMMA and composites with 0.5 and 1.0 wt% of Bi12SiO20 powder were made using solution casting method. Characterization of starting components and composites was performed with XRD, FTIR, Raman spectroscopy, SEM, DCS, tensile tests, nanoindentation and spectroscopic ellipsometry method in order to obtain information of their morphology, structure, thermal stability, mechanical and optical properties. Refractive index measurements using spectroscopic ellipsometry method have shown that refractive index of composites increases with the powder content. Nanoindentation and tensile tests have shown mechanical improvements with the addition of the crystal through Young's and reduced Young's modulus and hardness values. DSC analysis has shown an increase in T-g for composite with BSO.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Preparation, characterization and mechanical properties of Bi12SiO20-PMMA composite films",
pages = "381-376",
volume = "583",
doi = "10.1016/j.jallcom.2013.08.206"
}

Dukali, R. M., Radović, I., Stojanović, D., Uskoković, P., Romčević, N. Ž., Radojević, V.,& Aleksić, R.. (2014). Preparation, characterization and mechanical properties of Bi12SiO20-PMMA composite films. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 583, 376-381.
https://doi.org/10.1016/j.jallcom.2013.08.206

Dukali RM, Radović I, Stojanović D, Uskoković P, Romčević NŽ, Radojević V, Aleksić R. Preparation, characterization and mechanical properties of Bi12SiO20-PMMA composite films. in Journal of Alloys and Compounds. 2014;583:376-381.
doi:10.1016/j.jallcom.2013.08.206 .

Dukali, R. M., Radović, I., Stojanović, Dušica, Uskoković, Petar, Romčević, Nebojša Ž., Radojević, Vesna, Aleksić, Radoslav, "Preparation, characterization and mechanical properties of Bi12SiO20-PMMA composite films" in Journal of Alloys and Compounds, 583 (2014):376-381,
https://doi.org/10.1016/j.jallcom.2013.08.206 . .

TY  - JOUR
AU  - Lazarević, Zorica Z.
AU  - Kostić, S.
AU  - Radojević, Vesna
AU  - Romčević, Maja J.
AU  - Gilić, Martina
AU  - Petrović-Damjanović, M.
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2459
AB  - In this work, single crystals of bismuth silicon oxide (BSO; Bi12SiO20) have been grown by the Czochralski method. The growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12SiO20 has been investigated by x-ray diffraction (XRD), and Raman and Fourier transform infrared spectroscopy (FTIR) spectroscopy. The results obtained are discussed and compared with the published data. The pale yellow Bi12SiO20 single crystals prepared were without cores. Using spectroscopic measurements 19 Raman and 5 IR modes were observed.
PB  - IOP Publishing Ltd, Bristol
T2  - Physica Scripta
T1  - Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique
VL  - T157
DO  - 10.1088/0031-8949/2013/T157/014046
ER  - 

@article{
author = "Lazarević, Zorica Z. and Kostić, S. and Radojević, Vesna and Romčević, Maja J. and Gilić, Martina and Petrović-Damjanović, M. and Romčević, Nebojša Ž.",
year = "2013",
abstract = "In this work, single crystals of bismuth silicon oxide (BSO; Bi12SiO20) have been grown by the Czochralski method. The growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12SiO20 has been investigated by x-ray diffraction (XRD), and Raman and Fourier transform infrared spectroscopy (FTIR) spectroscopy. The results obtained are discussed and compared with the published data. The pale yellow Bi12SiO20 single crystals prepared were without cores. Using spectroscopic measurements 19 Raman and 5 IR modes were observed.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique",
volume = "T157",
doi = "10.1088/0031-8949/2013/T157/014046"
}

Lazarević, Z. Z., Kostić, S., Radojević, V., Romčević, M. J., Gilić, M., Petrović-Damjanović, M.,& Romčević, N. Ž.. (2013). Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique. in Physica Scripta
IOP Publishing Ltd, Bristol., T157.
https://doi.org/10.1088/0031-8949/2013/T157/014046

Lazarević ZZ, Kostić S, Radojević V, Romčević MJ, Gilić M, Petrović-Damjanović M, Romčević NŽ. Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique. in Physica Scripta. 2013;T157.
doi:10.1088/0031-8949/2013/T157/014046 .

Lazarević, Zorica Z., Kostić, S., Radojević, Vesna, Romčević, Maja J., Gilić, Martina, Petrović-Damjanović, M., Romčević, Nebojša Ž., "Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique" in Physica Scripta, T157 (2013),
https://doi.org/10.1088/0031-8949/2013/T157/014046 . .

TY  - JOUR
AU  - Lazarević, Zorica Z.
AU  - Kostić, S.
AU  - Radojević, Vesna
AU  - Romčević, Maja J.
AU  - Hadžić, Branka
AU  - Trajić, Jelena
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2549
AB  - In this work single crystals of bismuth germanium oxide (Bi12GeO20) have been grown by the Czochralski method. Growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and FTIR spectroscopy. The obtained results are discussed and compared with published data. On the basis of the measurements by Raman spectroscopy, we observed 15 modes.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Spectroscopy study of Bi12GeO20 single crystals
EP  - 61
IS  - 1-2
SP  - 58
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2549
ER  - 

@article{
author = "Lazarević, Zorica Z. and Kostić, S. and Radojević, Vesna and Romčević, Maja J. and Hadžić, Branka and Trajić, Jelena and Romčević, Nebojša Ž.",
year = "2013",
abstract = "In this work single crystals of bismuth germanium oxide (Bi12GeO20) have been grown by the Czochralski method. Growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and FTIR spectroscopy. The obtained results are discussed and compared with published data. On the basis of the measurements by Raman spectroscopy, we observed 15 modes.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Spectroscopy study of Bi12GeO20 single crystals",
pages = "61-58",
number = "1-2",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2549"
}

Lazarević, Z. Z., Kostić, S., Radojević, V., Romčević, M. J., Hadžić, B., Trajić, J.,& Romčević, N. Ž.. (2013). Spectroscopy study of Bi12GeO20 single crystals. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 7(1-2), 58-61.
https://hdl.handle.net/21.15107/rcub_technorep_2549

Lazarević ZZ, Kostić S, Radojević V, Romčević MJ, Hadžić B, Trajić J, Romčević NŽ. Spectroscopy study of Bi12GeO20 single crystals. in Optoelectronics and Advanced Materials-Rapid Communications. 2013;7(1-2):58-61.
https://hdl.handle.net/21.15107/rcub_technorep_2549 .

Lazarević, Zorica Z., Kostić, S., Radojević, Vesna, Romčević, Maja J., Hadžić, Branka, Trajić, Jelena, Romčević, Nebojša Ž., "Spectroscopy study of Bi12GeO20 single crystals" in Optoelectronics and Advanced Materials-Rapid Communications, 7, no. 1-2 (2013):58-61,
https://hdl.handle.net/21.15107/rcub_technorep_2549 .