TY  - JOUR
AU  - Lojpur, Vesna
AU  - Rabanal Jiménez, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Tan, Z.
AU  - Hashishin, Takeshi
AU  - Ohara, Satoshi
AU  - Milošević, Olivera
AU  - Mančić, Lidija
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7992
AB  - Nanocrystalline up-converting Y₂ O₃Yb³⁺ Er³⁺ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm3/min, synthesis temperature 900 °C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 °C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f–f electronic transitions: ²H₉/₂ → ⁴I₁₅/₂ (blue: 407–420 nm), (²H₁₁/₂̦ ⁴S₃/₂) → ⁴I₁₅/₂ (green: 510–590 nm), and ⁴F₉/₂ → ⁴I₁₅/₂ (red: 640–720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the anneal-ing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).
T2  - Journal of Alloys and Compounds
T1  - Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route
VL  - 580
SP  - 584
EP  - 591
DO  - 10.1016/j.jallcom.2013.07.125
ER  - 

@article{
author = "Lojpur, Vesna and Rabanal Jiménez, Maria Eugenia and Dramićanin, Miroslav and Tan, Z. and Hashishin, Takeshi and Ohara, Satoshi and Milošević, Olivera and Mančić, Lidija",
year = "2013",
abstract = "Nanocrystalline up-converting Y₂ O₃Yb³⁺ Er³⁺ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm3/min, synthesis temperature 900 °C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 °C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f–f electronic transitions: ²H₉/₂ → ⁴I₁₅/₂ (blue: 407–420 nm), (²H₁₁/₂̦ ⁴S₃/₂) → ⁴I₁₅/₂ (green: 510–590 nm), and ⁴F₉/₂ → ⁴I₁₅/₂ (red: 640–720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the anneal-ing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).",
journal = "Journal of Alloys and Compounds",
title = "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route",
volume = "580",
pages = "584-591",
doi = "10.1016/j.jallcom.2013.07.125"
}

Lojpur, V., Rabanal Jiménez, M. E., Dramićanin, M., Tan, Z., Hashishin, T., Ohara, S., Milošević, O.,& Mančić, L.. (2013). Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route. in Journal of Alloys and Compounds, 580, 584-591.
https://doi.org/10.1016/j.jallcom.2013.07.125

Lojpur V, Rabanal Jiménez ME, Dramićanin M, Tan Z, Hashishin T, Ohara S, Milošević O, Mančić L. Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route. in Journal of Alloys and Compounds. 2013;580:584-591.
doi:10.1016/j.jallcom.2013.07.125 .

Lojpur, Vesna, Rabanal Jiménez, Maria Eugenia, Dramićanin, Miroslav, Tan, Z., Hashishin, Takeshi, Ohara, Satoshi, Milošević, Olivera, Mančić, Lidija, "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route" in Journal of Alloys and Compounds, 580 (2013):584-591,
https://doi.org/10.1016/j.jallcom.2013.07.125 . .

TY  - JOUR
AU  - Dugandžić, Ivan
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Dramićanin, Miroslav
AU  - Rabanal, Maria Eugenia
AU  - Hashishin, T.
AU  - Tan, Z.
AU  - Ohara, S.
AU  - Milošević, Olivera
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5679
AB  - The opportunities of the hot wall aerosol synthesis, i.e. conventional spray pyrolysis (CSP) method are demonstrated for the generation of highly spherical three-dimensional (3D) nanostructured phosphor particles with uniformly distributed components, phases and nano-clustered inner structure. With the presumption that certain particle morphology is formed during the evaporation/drying stage, the aerosol transport properties and powder generation are correlated with the particles structural and morphological features. With the help of various analyzing techniques like Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM) coupled with energy dispersive X-ray Analysis and STEM mode (TEM/EDS), X-ray Powder Diffraction (XRPD) and fluorescence measurements the feasible processing of up-conversion rare-earth Y2O3:Er, Yb phosphors powders are discussed. (C) 2013 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
T2  - Advanced Powder Technology
T1  - Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing
VL  - 24
IS  - 5
SP  - 852
EP  - 857
DO  - 10.1016/j.apt.2013.02.011
ER  - 

@article{
author = "Dugandžić, Ivan and Lojpur, Vesna and Mančić, Lidija and Dramićanin, Miroslav and Rabanal, Maria Eugenia and Hashishin, T. and Tan, Z. and Ohara, S. and Milošević, Olivera",
year = "2013",
abstract = "The opportunities of the hot wall aerosol synthesis, i.e. conventional spray pyrolysis (CSP) method are demonstrated for the generation of highly spherical three-dimensional (3D) nanostructured phosphor particles with uniformly distributed components, phases and nano-clustered inner structure. With the presumption that certain particle morphology is formed during the evaporation/drying stage, the aerosol transport properties and powder generation are correlated with the particles structural and morphological features. With the help of various analyzing techniques like Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM) coupled with energy dispersive X-ray Analysis and STEM mode (TEM/EDS), X-ray Powder Diffraction (XRPD) and fluorescence measurements the feasible processing of up-conversion rare-earth Y2O3:Er, Yb phosphors powders are discussed. (C) 2013 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.",
journal = "Advanced Powder Technology",
title = "Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing",
volume = "24",
number = "5",
pages = "852-857",
doi = "10.1016/j.apt.2013.02.011"
}

Dugandžić, I., Lojpur, V., Mančić, L., Dramićanin, M., Rabanal, M. E., Hashishin, T., Tan, Z., Ohara, S.,& Milošević, O.. (2013). Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing. in Advanced Powder Technology, 24(5), 852-857.
https://doi.org/10.1016/j.apt.2013.02.011

Dugandžić I, Lojpur V, Mančić L, Dramićanin M, Rabanal ME, Hashishin T, Tan Z, Ohara S, Milošević O. Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing. in Advanced Powder Technology. 2013;24(5):852-857.
doi:10.1016/j.apt.2013.02.011 .

Dugandžić, Ivan, Lojpur, Vesna, Mančić, Lidija, Dramićanin, Miroslav, Rabanal, Maria Eugenia, Hashishin, T., Tan, Z., Ohara, S., Milošević, Olivera, "Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing" in Advanced Powder Technology, 24, no. 5 (2013):852-857,
https://doi.org/10.1016/j.apt.2013.02.011 . .

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Rabanal, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Tan, Z.
AU  - Hashishin, T.
AU  - Ohara, S.
AU  - Milošević, Olivera
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5685
AB  - Nanocrystalline up-converting Y2O3:Yb3+, Er3+ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm(3)/min, synthesis temperature 900 degrees C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 degrees C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f-f electronic transitions: H-2(9/2) - GT I-4(15/2) (blue: 407-420 nm), (H-2(11/2), S-4(3/2)) - GT I-4(15/2) (green: 510-590 nm), and F-4(9/2) - GT I-4(15/2) (red: 640-720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the annealing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).
T2  - Journal of Alloys and Compounds
T1  - Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route
VL  - 580
SP  - 584
EP  - 591
DO  - 10.1016/j.jallcom.2013.07.125
ER  - 

@article{
author = "Lojpur, Vesna and Mančić, Lidija and Rabanal, Maria Eugenia and Dramićanin, Miroslav and Tan, Z. and Hashishin, T. and Ohara, S. and Milošević, Olivera",
year = "2013",
abstract = "Nanocrystalline up-converting Y2O3:Yb3+, Er3+ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm(3)/min, synthesis temperature 900 degrees C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 degrees C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f-f electronic transitions: H-2(9/2) - GT I-4(15/2) (blue: 407-420 nm), (H-2(11/2), S-4(3/2)) - GT I-4(15/2) (green: 510-590 nm), and F-4(9/2) - GT I-4(15/2) (red: 640-720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the annealing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).",
journal = "Journal of Alloys and Compounds",
title = "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route",
volume = "580",
pages = "584-591",
doi = "10.1016/j.jallcom.2013.07.125"
}

Lojpur, V., Mančić, L., Rabanal, M. E., Dramićanin, M., Tan, Z., Hashishin, T., Ohara, S.,& Milošević, O.. (2013). Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route. in Journal of Alloys and Compounds, 580, 584-591.
https://doi.org/10.1016/j.jallcom.2013.07.125

Lojpur V, Mančić L, Rabanal ME, Dramićanin M, Tan Z, Hashishin T, Ohara S, Milošević O. Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route. in Journal of Alloys and Compounds. 2013;580:584-591.
doi:10.1016/j.jallcom.2013.07.125 .

Lojpur, Vesna, Mančić, Lidija, Rabanal, Maria Eugenia, Dramićanin, Miroslav, Tan, Z., Hashishin, T., Ohara, S., Milošević, Olivera, "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route" in Journal of Alloys and Compounds, 580 (2013):584-591,
https://doi.org/10.1016/j.jallcom.2013.07.125 . .