TY  - JOUR
AU  - Đačanin Far, Ljubica
AU  - Ćirić, Aleksandar
AU  - Ristić, Zoran
AU  - Periša, Jovana
AU  - Dramićanin, Tatjana
AU  - Lukić-Petrović, Svetlana R.
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10342
AB  - Y3NbO7:xEu3+ powders (x = 0.25, 0.5, 0.75, 2, 3, 5, 10 at%) were synthesized by a two-step vibrational milling, alternating with annealing. All the samples crystallize as fluorite-type structure (space group Fm3‾m), with crystallite size 50–60 nm and show a strong orange/red luminescence with an excited state lifetime around 1.2 ms. Photoluminescence excitation and emission spectra show rapid intensity decline after 3 at% of Eu3+ content, indicating this concentration as critical for the concentration quenching, and we predicted multipolar interaction as the dominant mechanism behind it. Judd–Ofelt intensity parameters (Ω2 = 0.941∙10−20 cm2, Ω4 = 0.277∙10−20 cm2, Ω6 = 0.277∙10−20 cm2) were obtained from the excitation spectrum of Y3NbO7:3 at%Eu3+. The emission of this luminescent powder is characterized by radiative and nonradiative lifetimes of 2.3 ms and 2.4 ms, respectively, and an intrinsic quantum yield of 51.5%.
T2  - Ceramics International
T1  - Photoluminescence of Y3NbO7:Eu3+ powders
DO  - 10.1016/j.ceramint.2022.06.130
ER  - 

@article{
author = "Đačanin Far, Ljubica and Ćirić, Aleksandar and Ristić, Zoran and Periša, Jovana and Dramićanin, Tatjana and Lukić-Petrović, Svetlana R. and Dramićanin, Miroslav",
year = "2022",
abstract = "Y3NbO7:xEu3+ powders (x = 0.25, 0.5, 0.75, 2, 3, 5, 10 at%) were synthesized by a two-step vibrational milling, alternating with annealing. All the samples crystallize as fluorite-type structure (space group Fm3‾m), with crystallite size 50–60 nm and show a strong orange/red luminescence with an excited state lifetime around 1.2 ms. Photoluminescence excitation and emission spectra show rapid intensity decline after 3 at% of Eu3+ content, indicating this concentration as critical for the concentration quenching, and we predicted multipolar interaction as the dominant mechanism behind it. Judd–Ofelt intensity parameters (Ω2 = 0.941∙10−20 cm2, Ω4 = 0.277∙10−20 cm2, Ω6 = 0.277∙10−20 cm2) were obtained from the excitation spectrum of Y3NbO7:3 at%Eu3+. The emission of this luminescent powder is characterized by radiative and nonradiative lifetimes of 2.3 ms and 2.4 ms, respectively, and an intrinsic quantum yield of 51.5%.",
journal = "Ceramics International",
title = "Photoluminescence of Y3NbO7:Eu3+ powders",
doi = "10.1016/j.ceramint.2022.06.130"
}

Đačanin Far, L., Ćirić, A., Ristić, Z., Periša, J., Dramićanin, T., Lukić-Petrović, S. R.,& Dramićanin, M.. (2022). Photoluminescence of Y3NbO7:Eu3+ powders. in Ceramics International.
https://doi.org/10.1016/j.ceramint.2022.06.130

Đačanin Far L, Ćirić A, Ristić Z, Periša J, Dramićanin T, Lukić-Petrović SR, Dramićanin M. Photoluminescence of Y3NbO7:Eu3+ powders. in Ceramics International. 2022;.
doi:10.1016/j.ceramint.2022.06.130 .

Đačanin Far, Ljubica, Ćirić, Aleksandar, Ristić, Zoran, Periša, Jovana, Dramićanin, Tatjana, Lukić-Petrović, Svetlana R., Dramićanin, Miroslav, "Photoluminescence of Y3NbO7:Eu3+ powders" in Ceramics International (2022),
https://doi.org/10.1016/j.ceramint.2022.06.130 . .

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Xia, Yang
AU  - Benzine, Omar
AU  - Petrović, Jelena
AU  - Papan, Jelena
AU  - Lukić-Petrović, Svetlana R.
AU  - Litvinchuk, Alexander P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9691
AB  - Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.
T2  - Ceramics International
T1  - Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology
VL  - 47
IS  - 4
SP  - 4944
EP  - 4953
DO  - 10.1016/j.ceramint.2020.10.070
ER  - 

@article{
author = "Ivetić, Tamara B. and Xia, Yang and Benzine, Omar and Petrović, Jelena and Papan, Jelena and Lukić-Petrović, Svetlana R. and Litvinchuk, Alexander P.",
year = "2021",
abstract = "Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.",
journal = "Ceramics International",
title = "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology",
volume = "47",
number = "4",
pages = "4944-4953",
doi = "10.1016/j.ceramint.2020.10.070"
}

Ivetić, T. B., Xia, Y., Benzine, O., Petrović, J., Papan, J., Lukić-Petrović, S. R.,& Litvinchuk, A. P.. (2021). Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International, 47(4), 4944-4953.
https://doi.org/10.1016/j.ceramint.2020.10.070

Ivetić TB, Xia Y, Benzine O, Petrović J, Papan J, Lukić-Petrović SR, Litvinchuk AP. Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International. 2021;47(4):4944-4953.
doi:10.1016/j.ceramint.2020.10.070 .

Ivetić, Tamara B., Xia, Yang, Benzine, Omar, Petrović, Jelena, Papan, Jelena, Lukić-Petrović, Svetlana R., Litvinchuk, Alexander P., "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology" in Ceramics International, 47, no. 4 (2021):4944-4953,
https://doi.org/10.1016/j.ceramint.2020.10.070 . .

TY  - JOUR
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7587
AB  - Dy3+-and Nd3+-doped YNbO4 powders were prepared using a mechanochemical method followed by annealing, and their photoluminescent properties were examined to assess the possibility of their use in phosphor thermometry. Luminescence intensity ratio technique was used as a temperature readout scheme for both YNba(4):Dy3+ and YNbO4:Nd3+ samples. The crystalline structure of the samples is confirmed by XRD measurements, while SEM was used for the microstructural and compositional characterization. Sample doped with Dy3+ ions emitting in the blue region has been investigated in the 293-773 K temperature range and exhibits maximal relative sensitivity of 1.97% K-1 at 300 K. YNbO4:Nd3+ sample showed intense NIR emission which fall into the first biological window. When heated from 303 up to 473 K relative temperature sensitivity of 0.28%K-1 at 300 K was achieved. Values of temperature sensitivities show that YNbO4 has a large potential for the development of thermographic phosphors in the blue and NIR spectral ranges when doped with trivalent Dy and Nd, respectively. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Sensors and Actuators A: Physical
T1  - Luminescence temperature sensing in visible and NIR spectral range using Dy3+ and Nd3+ doped YNbO4
VL  - 270
SP  - 89
EP  - 96
DO  - 10.1016/j.sna.2017.12.044
ER  - 

@article{
year = "2018",
abstract = "Dy3+-and Nd3+-doped YNbO4 powders were prepared using a mechanochemical method followed by annealing, and their photoluminescent properties were examined to assess the possibility of their use in phosphor thermometry. Luminescence intensity ratio technique was used as a temperature readout scheme for both YNba(4):Dy3+ and YNbO4:Nd3+ samples. The crystalline structure of the samples is confirmed by XRD measurements, while SEM was used for the microstructural and compositional characterization. Sample doped with Dy3+ ions emitting in the blue region has been investigated in the 293-773 K temperature range and exhibits maximal relative sensitivity of 1.97% K-1 at 300 K. YNbO4:Nd3+ sample showed intense NIR emission which fall into the first biological window. When heated from 303 up to 473 K relative temperature sensitivity of 0.28%K-1 at 300 K was achieved. Values of temperature sensitivities show that YNbO4 has a large potential for the development of thermographic phosphors in the blue and NIR spectral ranges when doped with trivalent Dy and Nd, respectively. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Sensors and Actuators A: Physical",
title = "Luminescence temperature sensing in visible and NIR spectral range using Dy3+ and Nd3+ doped YNbO4",
volume = "270",
pages = "89-96",
doi = "10.1016/j.sna.2017.12.044"
}

(2018). Luminescence temperature sensing in visible and NIR spectral range using Dy3+ and Nd3+ doped YNbO4. in Sensors and Actuators A: Physical, 270, 89-96.
https://doi.org/10.1016/j.sna.2017.12.044

Luminescence temperature sensing in visible and NIR spectral range using Dy3+ and Nd3+ doped YNbO4. in Sensors and Actuators A: Physical. 2018;270:89-96.
doi:10.1016/j.sna.2017.12.044 .

"Luminescence temperature sensing in visible and NIR spectral range using Dy3+ and Nd3+ doped YNbO4" in Sensors and Actuators A: Physical, 270 (2018):89-96,
https://doi.org/10.1016/j.sna.2017.12.044 . .

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Sekulić, Dalibor L.
AU  - Papan, Jelena
AU  - Guth, Imre O.
AU  - Petrović, Dragoslav M.
AU  - Lukić-Petrović, Svetlana R.
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0272884218318674
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7813
AB  - This paper describes the processing, microstructure, optical and electrical properties of the nanocrystalline (NC) niobium and zinc doped titanium-tin-oxide (TTO:NZ) based ceramics. Variety of techniques was employed (X-ray diffraction, scanning electron microscopy, energy dispersive, Raman and impedance spectroscopy) in the characterization of the obtained TTO:NZ, which confirmed the formation of NC solid-solution matrix with Ti0.8Sn0.2O2 composition. A specific highly dense (approximately 97% of the theoretical density was reached) varistor like microstructure (matrix metal-oxide grains surrounded by the grain-boundary regions) and accordingly resembling electrical properties (breakdown electric field of approximately 130 V/mm and nonlinearity coefficient of α ≈ 6.5) were achieved through double cation doping and elected condition of the mechanochemical solid-state synthesis. Impedance response analysis of TTO:NZ ceramics by means of an equivalent electrical circuit based on the brick-layer model for polycrystalline materials revealed the presence of two temperature dependent electrical relaxation phenomena of the non-Debye type as well as the negative temperature coefficient of resistance behavior.
T2  - Ceramics International
T1  - Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization
VL  - 44
IS  - 15
SP  - 18987
EP  - 18995
DO  - 10.1016/j.ceramint.2018.07.139
ER  - 

@article{
author = "Ivetić, Tamara B. and Sekulić, Dalibor L. and Papan, Jelena and Guth, Imre O. and Petrović, Dragoslav M. and Lukić-Petrović, Svetlana R.",
year = "2018",
abstract = "This paper describes the processing, microstructure, optical and electrical properties of the nanocrystalline (NC) niobium and zinc doped titanium-tin-oxide (TTO:NZ) based ceramics. Variety of techniques was employed (X-ray diffraction, scanning electron microscopy, energy dispersive, Raman and impedance spectroscopy) in the characterization of the obtained TTO:NZ, which confirmed the formation of NC solid-solution matrix with Ti0.8Sn0.2O2 composition. A specific highly dense (approximately 97% of the theoretical density was reached) varistor like microstructure (matrix metal-oxide grains surrounded by the grain-boundary regions) and accordingly resembling electrical properties (breakdown electric field of approximately 130 V/mm and nonlinearity coefficient of α ≈ 6.5) were achieved through double cation doping and elected condition of the mechanochemical solid-state synthesis. Impedance response analysis of TTO:NZ ceramics by means of an equivalent electrical circuit based on the brick-layer model for polycrystalline materials revealed the presence of two temperature dependent electrical relaxation phenomena of the non-Debye type as well as the negative temperature coefficient of resistance behavior.",
journal = "Ceramics International",
title = "Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization",
volume = "44",
number = "15",
pages = "18987-18995",
doi = "10.1016/j.ceramint.2018.07.139"
}

Ivetić, T. B., Sekulić, D. L., Papan, J., Guth, I. O., Petrović, D. M.,& Lukić-Petrović, S. R.. (2018). Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization. in Ceramics International, 44(15), 18987-18995.
https://doi.org/10.1016/j.ceramint.2018.07.139

Ivetić TB, Sekulić DL, Papan J, Guth IO, Petrović DM, Lukić-Petrović SR. Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization. in Ceramics International. 2018;44(15):18987-18995.
doi:10.1016/j.ceramint.2018.07.139 .

Ivetić, Tamara B., Sekulić, Dalibor L., Papan, Jelena, Guth, Imre O., Petrović, Dragoslav M., Lukić-Petrović, Svetlana R., "Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization" in Ceramics International, 44, no. 15 (2018):18987-18995,
https://doi.org/10.1016/j.ceramint.2018.07.139 . .

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Tadić, Marin
AU  - Jagodič, Marko
AU  - Gyergyek, Sašo
AU  - Štrbac, Goran R.
AU  - Lukić-Petrović, Svetlana R.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1316
AB  - This paper reports on novel cobalt oxide nanoparticles (NPs) embedded in an amorphous silica (SiO2) matrix, synthesized using a modified sol-gel method. SEM and TEM images show as-synthesized particles to aggregate in the shape of spheres and less than 5 nm in size, while XRD and SAED analysis both point to well crystallized cubic spinel cobalt oxide phase with an average crystallite size of about 4.6 nm. Raman analysis confirms the formation of cobalt (III) oxide (Co3O4) NPs. As-synthesized Co3O4 single-nanocrystallite has magnetic properties that correlate with finite size effects and uncompensated surface spins. Temperature dependence of ZFC-FC magnetization curves reveals a sharp peak around 10 K which corresponds to the blocking temperature. A Curie-Weiss behavior of magnetization above 25 K shows lower Neel temperature of the sample compared with its bulk counterpart T-N=40 K (possibly due to crystal defects and nano-dimensionality of the particles). The magnetic measurements exhibit high magnetization at low temperatures (M-s=54.3 emu/g) which can be associated with random canting of the particles surface spins and uncompensated spins in the core which tends to interact ferromagnetically at low temperatures. The initial magnetization curve falls out from the hysteresis loop at 5 K, which could be also the effect of surface spins. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Structure and magnetic properties of Co3O4/SiO2 nanocomposite synthesized using combustion assisted sol-gel method
VL  - 42
IS  - 16
SP  - 18312
EP  - 18317
DO  - 10.1016/j.ceramint.2016.08.159
ER  - 

@article{
author = "Ivetić, Tamara B. and Tadić, Marin and Jagodič, Marko and Gyergyek, Sašo and Štrbac, Goran R. and Lukić-Petrović, Svetlana R.",
year = "2016",
abstract = "This paper reports on novel cobalt oxide nanoparticles (NPs) embedded in an amorphous silica (SiO2) matrix, synthesized using a modified sol-gel method. SEM and TEM images show as-synthesized particles to aggregate in the shape of spheres and less than 5 nm in size, while XRD and SAED analysis both point to well crystallized cubic spinel cobalt oxide phase with an average crystallite size of about 4.6 nm. Raman analysis confirms the formation of cobalt (III) oxide (Co3O4) NPs. As-synthesized Co3O4 single-nanocrystallite has magnetic properties that correlate with finite size effects and uncompensated surface spins. Temperature dependence of ZFC-FC magnetization curves reveals a sharp peak around 10 K which corresponds to the blocking temperature. A Curie-Weiss behavior of magnetization above 25 K shows lower Neel temperature of the sample compared with its bulk counterpart T-N=40 K (possibly due to crystal defects and nano-dimensionality of the particles). The magnetic measurements exhibit high magnetization at low temperatures (M-s=54.3 emu/g) which can be associated with random canting of the particles surface spins and uncompensated spins in the core which tends to interact ferromagnetically at low temperatures. The initial magnetization curve falls out from the hysteresis loop at 5 K, which could be also the effect of surface spins. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Structure and magnetic properties of Co3O4/SiO2 nanocomposite synthesized using combustion assisted sol-gel method",
volume = "42",
number = "16",
pages = "18312-18317",
doi = "10.1016/j.ceramint.2016.08.159"
}

Ivetić, T. B., Tadić, M., Jagodič, M., Gyergyek, S., Štrbac, G. R.,& Lukić-Petrović, S. R.. (2016). Structure and magnetic properties of Co3O4/SiO2 nanocomposite synthesized using combustion assisted sol-gel method. in Ceramics International, 42(16), 18312-18317.
https://doi.org/10.1016/j.ceramint.2016.08.159

Ivetić TB, Tadić M, Jagodič M, Gyergyek S, Štrbac GR, Lukić-Petrović SR. Structure and magnetic properties of Co3O4/SiO2 nanocomposite synthesized using combustion assisted sol-gel method. in Ceramics International. 2016;42(16):18312-18317.
doi:10.1016/j.ceramint.2016.08.159 .

Ivetić, Tamara B., Tadić, Marin, Jagodič, Marko, Gyergyek, Sašo, Štrbac, Goran R., Lukić-Petrović, Svetlana R., "Structure and magnetic properties of Co3O4/SiO2 nanocomposite synthesized using combustion assisted sol-gel method" in Ceramics International, 42, no. 16 (2016):18312-18317,
https://doi.org/10.1016/j.ceramint.2016.08.159 . .

TY  - JOUR
AU  - Đačanin, Ljubica
AU  - Dramićanin, Miroslav
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, Marko G.
AU  - Ivetić, Tamara B.
AU  - Guth, Imre O.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5971
AB  - In this research we prepared nanocrystalline YNbO4:Eu3+ phosphor, i.e. nanophosphor, powder using an efficient mechanochemical method followed by annealing. X-ray diffraction analysis revealed that YNbO4:Eu3+ crystallizes in monoclinic structure C2/c where, from the point of view of A and B in ABO(4) compounds, cation coordination can be noted as [6+2, 4+2]. Crystallite size of about 40 nm, was estimated using Debye Scherrers equation. Raman spectroscopy with 785 and 532 rim excitation wavelengths is performed to record a majority of materials phonon modes and to provide more in depth understanding of the YNbO4 structure. Scanning electron microscopy observations indicate that the mechanical treatment during synthesis is causing non-uniformity of the powder microstructure. High resolution photoluminescent measurements upon UV excitation showed intense emission coming from f-f transitions of the europium ion with the lifetime of 0.68 ms, suggesting that the obtained YNbO4:Eu3+ is a good potential phosphor. A comparison of emissive properties with microcrystalline YNbO4:Eu3+ was made and it showed higher values of emission intensity and lifetime of the nanocrystalline sample.(C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Mechanochemical synthesis of YNbO4:Eu nanocrystalline powder and its structural, microstructural and photoluminescence properties
VL  - 40
IS  - 6
SP  - 8281
EP  - 8286
DO  - 10.1016/j.ceramint.2014.01.028
ER  - 

@article{
author = "Đačanin, Ljubica and Dramićanin, Miroslav and Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Nikolić, Marko G. and Ivetić, Tamara B. and Guth, Imre O.",
year = "2014",
abstract = "In this research we prepared nanocrystalline YNbO4:Eu3+ phosphor, i.e. nanophosphor, powder using an efficient mechanochemical method followed by annealing. X-ray diffraction analysis revealed that YNbO4:Eu3+ crystallizes in monoclinic structure C2/c where, from the point of view of A and B in ABO(4) compounds, cation coordination can be noted as [6+2, 4+2]. Crystallite size of about 40 nm, was estimated using Debye Scherrers equation. Raman spectroscopy with 785 and 532 rim excitation wavelengths is performed to record a majority of materials phonon modes and to provide more in depth understanding of the YNbO4 structure. Scanning electron microscopy observations indicate that the mechanical treatment during synthesis is causing non-uniformity of the powder microstructure. High resolution photoluminescent measurements upon UV excitation showed intense emission coming from f-f transitions of the europium ion with the lifetime of 0.68 ms, suggesting that the obtained YNbO4:Eu3+ is a good potential phosphor. A comparison of emissive properties with microcrystalline YNbO4:Eu3+ was made and it showed higher values of emission intensity and lifetime of the nanocrystalline sample.(C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Mechanochemical synthesis of YNbO4:Eu nanocrystalline powder and its structural, microstructural and photoluminescence properties",
volume = "40",
number = "6",
pages = "8281-8286",
doi = "10.1016/j.ceramint.2014.01.028"
}

Đačanin, L., Dramićanin, M., Lukić-Petrović, S. R., Petrović, D. M., Nikolić, M. G., Ivetić, T. B.,& Guth, I. O.. (2014). Mechanochemical synthesis of YNbO4:Eu nanocrystalline powder and its structural, microstructural and photoluminescence properties. in Ceramics International, 40(6), 8281-8286.
https://doi.org/10.1016/j.ceramint.2014.01.028

Đačanin L, Dramićanin M, Lukić-Petrović SR, Petrović DM, Nikolić MG, Ivetić TB, Guth IO. Mechanochemical synthesis of YNbO4:Eu nanocrystalline powder and its structural, microstructural and photoluminescence properties. in Ceramics International. 2014;40(6):8281-8286.
doi:10.1016/j.ceramint.2014.01.028 .

Đačanin, Ljubica, Dramićanin, Miroslav, Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Nikolić, Marko G., Ivetić, Tamara B., Guth, Imre O., "Mechanochemical synthesis of YNbO4:Eu nanocrystalline powder and its structural, microstructural and photoluminescence properties" in Ceramics International, 40, no. 6 (2014):8281-8286,
https://doi.org/10.1016/j.ceramint.2014.01.028 . .

TY  - JOUR
AU  - Đačanin, Ljubica
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, Marko G.
AU  - Dramićanin, Miroslav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6006
AB  - We prepared Eu3+- and Sm3+-doped YNbO4 phosphor powders using a simple solid-state reaction method and examined their photoluminescence properties in order to investigate the possibility for their usage in phosphor thermometry. Photoluminescence measurements were performed in the temperature range 303-773 K, and the fluorescence intensity ratio of the paired emissions lines was studied as a function of temperature. The results have shown that YNbO4:Eu3+ possesses the absolute sensitivity of approximately 3 Chi 10(-3) K-1 at about 700 K, while relative sensitivity changes within the range of 0.5-2.7% K-1. YNbO4:Sm3+ has the maximum sensitivity of around 7 Chi 10(-4) K-1 at about 700 K with the relative sensitivity of 0.43% K-1 around 500 K. Calculated temperature sensitivities of samples show that these materials have a good potential for the development of therrnographic phosphors. Experimental lifetime measurements recorded at 303-773 K were fitted using a temperature dependent charge transfer model, TDCT. This model yields good agreement between experimental and fitted lifetime data. The sample crystalline structure is confirmed by XRD measurements. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Journal of Luminescence
T1  - Temperature quenching of luminescence emission in Eu3+- and Sm3+-doped YNbO4 powders
VL  - 151
SP  - 82
EP  - 87
DO  - 10.1016/j.jlumin.2014.02.008
ER  - 

@article{
author = "Đačanin, Ljubica and Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Nikolić, Marko G. and Dramićanin, Miroslav",
year = "2014",
abstract = "We prepared Eu3+- and Sm3+-doped YNbO4 phosphor powders using a simple solid-state reaction method and examined their photoluminescence properties in order to investigate the possibility for their usage in phosphor thermometry. Photoluminescence measurements were performed in the temperature range 303-773 K, and the fluorescence intensity ratio of the paired emissions lines was studied as a function of temperature. The results have shown that YNbO4:Eu3+ possesses the absolute sensitivity of approximately 3 Chi 10(-3) K-1 at about 700 K, while relative sensitivity changes within the range of 0.5-2.7% K-1. YNbO4:Sm3+ has the maximum sensitivity of around 7 Chi 10(-4) K-1 at about 700 K with the relative sensitivity of 0.43% K-1 around 500 K. Calculated temperature sensitivities of samples show that these materials have a good potential for the development of therrnographic phosphors. Experimental lifetime measurements recorded at 303-773 K were fitted using a temperature dependent charge transfer model, TDCT. This model yields good agreement between experimental and fitted lifetime data. The sample crystalline structure is confirmed by XRD measurements. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Journal of Luminescence",
title = "Temperature quenching of luminescence emission in Eu3+- and Sm3+-doped YNbO4 powders",
volume = "151",
pages = "82-87",
doi = "10.1016/j.jlumin.2014.02.008"
}

Đačanin, L., Lukić-Petrović, S. R., Petrović, D. M., Nikolić, M. G.,& Dramićanin, M.. (2014). Temperature quenching of luminescence emission in Eu3+- and Sm3+-doped YNbO4 powders. in Journal of Luminescence, 151, 82-87.
https://doi.org/10.1016/j.jlumin.2014.02.008

Đačanin L, Lukić-Petrović SR, Petrović DM, Nikolić MG, Dramićanin M. Temperature quenching of luminescence emission in Eu3+- and Sm3+-doped YNbO4 powders. in Journal of Luminescence. 2014;151:82-87.
doi:10.1016/j.jlumin.2014.02.008 .

Đačanin, Ljubica, Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Nikolić, Marko G., Dramićanin, Miroslav, "Temperature quenching of luminescence emission in Eu3+- and Sm3+-doped YNbO4 powders" in Journal of Luminescence, 151 (2014):82-87,
https://doi.org/10.1016/j.jlumin.2014.02.008 . .

TY  - JOUR
AU  - Strbac, D. D.
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Videnovic, I. R.
AU  - Dramićanin, Miroslav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6021
AB  - The paper reports on hardness of thin amorphous films of the Cux(As38.5Se54I7.5)(100-x) type for x=10, 15, 20 and 25 at-% evaluated by microindentation measurements and instrumented nanoindentation testing. Values of determined microhardness are in the interval of 748-1137 MPa, while nanohardness are in the interval of 930-1591 MPa and can be regarded as moderate in the category of chalcogenide glasses. Isotropic mechanical properties on thin films surface are determined. Influence of copper on mechanical properties of As-Se-I films is discussed in terms of possible structural units in glass matrix.
T2  - Materials Science and Technology
T1  - Influence of copper on hardness of amorphous As-Se-I thin films
VL  - 30
IS  - 2
SP  - 236
EP  - 240
DO  - 10.1179/1743284713Y.0000000346
ER  - 

@article{
author = "Strbac, D. D. and Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Videnovic, I. R. and Dramićanin, Miroslav",
year = "2014",
abstract = "The paper reports on hardness of thin amorphous films of the Cux(As38.5Se54I7.5)(100-x) type for x=10, 15, 20 and 25 at-% evaluated by microindentation measurements and instrumented nanoindentation testing. Values of determined microhardness are in the interval of 748-1137 MPa, while nanohardness are in the interval of 930-1591 MPa and can be regarded as moderate in the category of chalcogenide glasses. Isotropic mechanical properties on thin films surface are determined. Influence of copper on mechanical properties of As-Se-I films is discussed in terms of possible structural units in glass matrix.",
journal = "Materials Science and Technology",
title = "Influence of copper on hardness of amorphous As-Se-I thin films",
volume = "30",
number = "2",
pages = "236-240",
doi = "10.1179/1743284713Y.0000000346"
}

Strbac, D. D., Lukić-Petrović, S. R., Petrović, D. M., Videnovic, I. R.,& Dramićanin, M.. (2014). Influence of copper on hardness of amorphous As-Se-I thin films. in Materials Science and Technology, 30(2), 236-240.
https://doi.org/10.1179/1743284713Y.0000000346

Strbac DD, Lukić-Petrović SR, Petrović DM, Videnovic IR, Dramićanin M. Influence of copper on hardness of amorphous As-Se-I thin films. in Materials Science and Technology. 2014;30(2):236-240.
doi:10.1179/1743284713Y.0000000346 .

Strbac, D. D., Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Videnovic, I. R., Dramićanin, Miroslav, "Influence of copper on hardness of amorphous As-Se-I thin films" in Materials Science and Technology, 30, no. 2 (2014):236-240,
https://doi.org/10.1179/1743284713Y.0000000346 . .

TY  - JOUR
AU  - Đačanin, Ljubica
AU  - Dramićanin, Miroslav
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, Marko G.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7007
AB  - We prepared an efficient YNbO4:Eu3+ phosphor using a simple solid-state reaction method and examined its photoluminescent properties in order to investigate the possibility for its usage in phosphor thermometry. Photoluminescence measurements were performed in the temperature range 303-803 K, and the fluorescence intensity ratio (FIR) of the paired emissions lines of Eu3+ (D-5(1) - GT F-7(1) and D-5(0) - GT F-7(1) transitions) was studied as a function of temperature. The sample crystalline structure is confirmed by XRD measurements. The material is proved to have a good potential for the development of thermographic phosphors. It exhibits maximum temperature sensitivity of approximately 3.5 x 10(-3) K-1 in the temperature region around 700 K. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Radiation Measurements
T1  - Eu3+ doped YNbO4 phosphor properties for fluorescence thermometry
VL  - 56
SP  - 143
EP  - 146
DO  - 10.1016/j.radmeas.2013.01.038
ER  - 

@article{
author = "Đačanin, Ljubica and Dramićanin, Miroslav and Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Nikolić, Marko G.",
year = "2013",
abstract = "We prepared an efficient YNbO4:Eu3+ phosphor using a simple solid-state reaction method and examined its photoluminescent properties in order to investigate the possibility for its usage in phosphor thermometry. Photoluminescence measurements were performed in the temperature range 303-803 K, and the fluorescence intensity ratio (FIR) of the paired emissions lines of Eu3+ (D-5(1) - GT F-7(1) and D-5(0) - GT F-7(1) transitions) was studied as a function of temperature. The sample crystalline structure is confirmed by XRD measurements. The material is proved to have a good potential for the development of thermographic phosphors. It exhibits maximum temperature sensitivity of approximately 3.5 x 10(-3) K-1 in the temperature region around 700 K. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Radiation Measurements",
title = "Eu3+ doped YNbO4 phosphor properties for fluorescence thermometry",
volume = "56",
pages = "143-146",
doi = "10.1016/j.radmeas.2013.01.038"
}

Đačanin, L., Dramićanin, M., Lukić-Petrović, S. R., Petrović, D. M.,& Nikolić, M. G.. (2013). Eu3+ doped YNbO4 phosphor properties for fluorescence thermometry. in Radiation Measurements, 56, 143-146.
https://doi.org/10.1016/j.radmeas.2013.01.038

Đačanin L, Dramićanin M, Lukić-Petrović SR, Petrović DM, Nikolić MG. Eu3+ doped YNbO4 phosphor properties for fluorescence thermometry. in Radiation Measurements. 2013;56:143-146.
doi:10.1016/j.radmeas.2013.01.038 .

Đačanin, Ljubica, Dramićanin, Miroslav, Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Nikolić, Marko G., "Eu3+ doped YNbO4 phosphor properties for fluorescence thermometry" in Radiation Measurements, 56 (2013):143-146,
https://doi.org/10.1016/j.radmeas.2013.01.038 . .

TY  - JOUR
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, M.
AU  - Đačanin, Ljubica
AU  - Dramićanin, Miroslav
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5530
AB  - Phosphor materials are of special interest due to their important applications ranging from solid state lightning and displays to biomedicine. Understanding the spectroscopic properties of these materials is important for optimizing their emission for technological applications. Zinc silicate (Zn2SiO4) has been identified as a very suitable host matrix for many rare-earth and transition metal dopant ions with excellent luminescent properties in the blue, green and red spectral zones. Here, we present high resolution measurements of low-temperature photoluminescence of trivalent europium doped zinc silicate particles prepared by combination of so-gel and combustion synthesis route. We observed and analyzed 5D(0) - GT F-7(J) spin forbidden f-f electronic transitions at low temperatures, as well as emission kinetics from D-5(0) level and lifetime-temperature dependence.
T2  - Optoelectronics and Advanced Materials - Rapid Communications
T1  - Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder
VL  - 7
IS  - 3-4
SP  - 290
EP  - 292
UR  - https://hdl.handle.net/21.15107/rcub_vinar_5530
ER  - 

@article{
author = "Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Nikolić, M. and Đačanin, Ljubica and Dramićanin, Miroslav",
year = "2013",
abstract = "Phosphor materials are of special interest due to their important applications ranging from solid state lightning and displays to biomedicine. Understanding the spectroscopic properties of these materials is important for optimizing their emission for technological applications. Zinc silicate (Zn2SiO4) has been identified as a very suitable host matrix for many rare-earth and transition metal dopant ions with excellent luminescent properties in the blue, green and red spectral zones. Here, we present high resolution measurements of low-temperature photoluminescence of trivalent europium doped zinc silicate particles prepared by combination of so-gel and combustion synthesis route. We observed and analyzed 5D(0) - GT F-7(J) spin forbidden f-f electronic transitions at low temperatures, as well as emission kinetics from D-5(0) level and lifetime-temperature dependence.",
journal = "Optoelectronics and Advanced Materials - Rapid Communications",
title = "Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder",
volume = "7",
number = "3-4",
pages = "290-292",
url = "https://hdl.handle.net/21.15107/rcub_vinar_5530"
}

Lukić-Petrović, S. R., Petrović, D. M., Nikolić, M., Đačanin, L.,& Dramićanin, M.. (2013). Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder. in Optoelectronics and Advanced Materials - Rapid Communications, 7(3-4), 290-292.
https://hdl.handle.net/21.15107/rcub_vinar_5530

Lukić-Petrović SR, Petrović DM, Nikolić M, Đačanin L, Dramićanin M. Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder. in Optoelectronics and Advanced Materials - Rapid Communications. 2013;7(3-4):290-292.
https://hdl.handle.net/21.15107/rcub_vinar_5530 .

Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Nikolić, M., Đačanin, Ljubica, Dramićanin, Miroslav, "Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder" in Optoelectronics and Advanced Materials - Rapid Communications, 7, no. 3-4 (2013):290-292,
https://hdl.handle.net/21.15107/rcub_vinar_5530 .

TY  - JOUR
AU  - Đačanin, Ljubica
AU  - Dramićanin, Miroslav
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, Marko G.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4356
AB  - Lithium-indium oxide is a high-density (5.9 g center dot cm(-3)), wide band-gap semiconductor with promising applications for scintillating detection of solar neutrinos as well as for efficient phosphorescence when doped with Er3+ or Sm3+ ions. In this report, we demonstrate visible upconversion emission of Er3+-doped LiInO2 synthesized by a simple solid-state chemistry procedure and discuss mechanisms responsible for pumping the Er3+ ions to upper levels. Intense upconversion emission is observed in the green and red spectral regions under near-infrared excitation, and it is greatly enhanced by co-doping with Yb3+ ions. We also examined the upconversion intensity change as a function of temperature, and, consequently, possible applications of this material as a low-temperature sensor.
T2  - Central European Journal of Physics
T1  - Vaaisible upconversion emission of Er3+-doped and Er3+/Yb3+-codoped LiInO2
VL  - 10
IS  - 2
SP  - 519
EP  - 523
DO  - 10.2478/s11534-012-0009-z
ER  - 

@article{
author = "Đačanin, Ljubica and Dramićanin, Miroslav and Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Nikolić, Marko G.",
year = "2012",
abstract = "Lithium-indium oxide is a high-density (5.9 g center dot cm(-3)), wide band-gap semiconductor with promising applications for scintillating detection of solar neutrinos as well as for efficient phosphorescence when doped with Er3+ or Sm3+ ions. In this report, we demonstrate visible upconversion emission of Er3+-doped LiInO2 synthesized by a simple solid-state chemistry procedure and discuss mechanisms responsible for pumping the Er3+ ions to upper levels. Intense upconversion emission is observed in the green and red spectral regions under near-infrared excitation, and it is greatly enhanced by co-doping with Yb3+ ions. We also examined the upconversion intensity change as a function of temperature, and, consequently, possible applications of this material as a low-temperature sensor.",
journal = "Central European Journal of Physics",
title = "Vaaisible upconversion emission of Er3+-doped and Er3+/Yb3+-codoped LiInO2",
volume = "10",
number = "2",
pages = "519-523",
doi = "10.2478/s11534-012-0009-z"
}

Đačanin, L., Dramićanin, M., Lukić-Petrović, S. R., Petrović, D. M.,& Nikolić, M. G.. (2012). Vaaisible upconversion emission of Er3+-doped and Er3+/Yb3+-codoped LiInO2. in Central European Journal of Physics, 10(2), 519-523.
https://doi.org/10.2478/s11534-012-0009-z

Đačanin L, Dramićanin M, Lukić-Petrović SR, Petrović DM, Nikolić MG. Vaaisible upconversion emission of Er3+-doped and Er3+/Yb3+-codoped LiInO2. in Central European Journal of Physics. 2012;10(2):519-523.
doi:10.2478/s11534-012-0009-z .

Đačanin, Ljubica, Dramićanin, Miroslav, Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Nikolić, Marko G., "Vaaisible upconversion emission of Er3+-doped and Er3+/Yb3+-codoped LiInO2" in Central European Journal of Physics, 10, no. 2 (2012):519-523,
https://doi.org/10.2478/s11534-012-0009-z . .

TY  - JOUR
AU  - Dacanin, Lj
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Dramićanin, Miroslav
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4893
AB  - Lithium-indium oxide doped with Eu3+ or Sm3+ is prepared by a solid-state chemistry method and its properties are analyzed with respect to its possible application as a phosphor material. X-ray diffraction confirmed that the present synthesis yields a product in tetragonal structural form (space group I4(1)/amd) with no impurity phases. The optical band gaps of 3.4 eV for the Eu3+ sample and 3.5 eV for Sm3+ are found. Photoluminescence emission measurements showed that rare-earth ions substitute In in sites of D-2d symmetry with single-exponential emission decays of 1.5 ms for the Eu3+-doped sample and 2.3 ms for the Sm3+ case.
T2  - Physica Scripta
T1  - Photoluminescence of Eu- and Sm-doped LiInO2 phosphor powders
VL  - 85
IS  - 6
DO  - 10.1088/0031-8949/85/06/065703
ER  - 

@article{
author = "Dacanin, Lj and Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Dramićanin, Miroslav",
year = "2012",
abstract = "Lithium-indium oxide doped with Eu3+ or Sm3+ is prepared by a solid-state chemistry method and its properties are analyzed with respect to its possible application as a phosphor material. X-ray diffraction confirmed that the present synthesis yields a product in tetragonal structural form (space group I4(1)/amd) with no impurity phases. The optical band gaps of 3.4 eV for the Eu3+ sample and 3.5 eV for Sm3+ are found. Photoluminescence emission measurements showed that rare-earth ions substitute In in sites of D-2d symmetry with single-exponential emission decays of 1.5 ms for the Eu3+-doped sample and 2.3 ms for the Sm3+ case.",
journal = "Physica Scripta",
title = "Photoluminescence of Eu- and Sm-doped LiInO2 phosphor powders",
volume = "85",
number = "6",
doi = "10.1088/0031-8949/85/06/065703"
}

Dacanin, L., Lukić-Petrović, S. R., Petrović, D. M.,& Dramićanin, M.. (2012). Photoluminescence of Eu- and Sm-doped LiInO2 phosphor powders. in Physica Scripta, 85(6).
https://doi.org/10.1088/0031-8949/85/06/065703

Dacanin L, Lukić-Petrović SR, Petrović DM, Dramićanin M. Photoluminescence of Eu- and Sm-doped LiInO2 phosphor powders. in Physica Scripta. 2012;85(6).
doi:10.1088/0031-8949/85/06/065703 .

Dacanin, Lj, Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Dramićanin, Miroslav, "Photoluminescence of Eu- and Sm-doped LiInO2 phosphor powders" in Physica Scripta, 85, no. 6 (2012),
https://doi.org/10.1088/0031-8949/85/06/065703 . .