Gomez, Luz S.

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  • Gomez, Luz S. (2)
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Author's Bibliography

Nanostructured (Y1-Xgdx)(2)O-3:Eu3+ Powders Obtained Through Aerosol Synthesis

Marinkovic, Katarina R.; Mančić, Lidija; Rabanal, Maria Eugenia; Gomez, Luz S.; Dramićanin, Miroslav; Milošević, Olivera

(2010)

TY  - CONF
AU  - Marinkovic, Katarina R.
AU  - Mančić, Lidija
AU  - Rabanal, Maria Eugenia
AU  - Gomez, Luz S.
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6903
AB  - In this study, nanophase, spherical, polycrystalline (Y1-xGdx)(2)O-3:Eu3+ phosphor particles were synthesized from aerosols of corresponding nitrate solutions, ultrasonically generated at 1.3 MHz frequency, and thermally decomposed at 900 and 1100 degrees C. Structural and morphological analyses done by X-ray powder diffraction (XRPD) and transmission electron microscopy analysis (TEM) implied the formation of non-aggregated spherical, submicronic particles with smooth particle surfaces and filled morphology. The phase development and structural changes, determined using the Topas program, implied a nanocrystalline inner structure (crystallites LT 20 nm), that was also confirmed by SAED analysis. A bcc Ia-3 cubic phase was identified in all as-prepared samples, apart from the mixed oxide with the gadolinium content GT 75%, where the existence of a secondary, fcc Fm-3m cubic phase is determined. Only Ia-3 cubic phase was identified in thermally treated samples (1100 degrees C), while the powder morphological features were maintained, followed by increase in powder crystallinity and phase homogeneity. Functional properties were analyzed by means of photoluminescent analysis. Emission spectra showed typical Eu3+ D-5(0) - GT (7)Fi (i = 0, 1, 2, 3, 4) transitions with the dominant red emission peak at 611 nm.
T1  - Nanostructured (Y1-Xgdx)(2)O-3:Eu3+ Powders Obtained Through Aerosol Synthesis
VL  - 219
SP  - 83
EP  - +
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6903
ER  - 
@conference{
author = "Marinkovic, Katarina R. and Mančić, Lidija and Rabanal, Maria Eugenia and Gomez, Luz S. and Dramićanin, Miroslav and Milošević, Olivera",
year = "2010",
abstract = "In this study, nanophase, spherical, polycrystalline (Y1-xGdx)(2)O-3:Eu3+ phosphor particles were synthesized from aerosols of corresponding nitrate solutions, ultrasonically generated at 1.3 MHz frequency, and thermally decomposed at 900 and 1100 degrees C. Structural and morphological analyses done by X-ray powder diffraction (XRPD) and transmission electron microscopy analysis (TEM) implied the formation of non-aggregated spherical, submicronic particles with smooth particle surfaces and filled morphology. The phase development and structural changes, determined using the Topas program, implied a nanocrystalline inner structure (crystallites LT 20 nm), that was also confirmed by SAED analysis. A bcc Ia-3 cubic phase was identified in all as-prepared samples, apart from the mixed oxide with the gadolinium content GT 75%, where the existence of a secondary, fcc Fm-3m cubic phase is determined. Only Ia-3 cubic phase was identified in thermally treated samples (1100 degrees C), while the powder morphological features were maintained, followed by increase in powder crystallinity and phase homogeneity. Functional properties were analyzed by means of photoluminescent analysis. Emission spectra showed typical Eu3+ D-5(0) - GT (7)Fi (i = 0, 1, 2, 3, 4) transitions with the dominant red emission peak at 611 nm.",
title = "Nanostructured (Y1-Xgdx)(2)O-3:Eu3+ Powders Obtained Through Aerosol Synthesis",
volume = "219",
pages = "83-+",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6903"
}
Marinkovic, K. R., Mančić, L., Rabanal, M. E., Gomez, L. S., Dramićanin, M.,& Milošević, O.. (2010). Nanostructured (Y1-Xgdx)(2)O-3:Eu3+ Powders Obtained Through Aerosol Synthesis. , 219, 83-+.
https://hdl.handle.net/21.15107/rcub_vinar_6903
Marinkovic KR, Mančić L, Rabanal ME, Gomez LS, Dramićanin M, Milošević O. Nanostructured (Y1-Xgdx)(2)O-3:Eu3+ Powders Obtained Through Aerosol Synthesis. 2010;219:83-+.
https://hdl.handle.net/21.15107/rcub_vinar_6903 .
Marinkovic, Katarina R., Mančić, Lidija, Rabanal, Maria Eugenia, Gomez, Luz S., Dramićanin, Miroslav, Milošević, Olivera, "Nanostructured (Y1-Xgdx)(2)O-3:Eu3+ Powders Obtained Through Aerosol Synthesis", 219 (2010):83-+,
https://hdl.handle.net/21.15107/rcub_vinar_6903 .
2

Photoluminescent properties of nanostructured Y2O3:Eu3+ powders obtained through aerosol synthesis

Marinkovic, K.; Mančić, Lidija; Gomez, Luz S.; Rabanal, Maria Eugenia; Dramićanin, Miroslav; Milošević, Olivera

(2010)

TY  - JOUR
AU  - Marinkovic, K.
AU  - Mančić, Lidija
AU  - Gomez, Luz S.
AU  - Rabanal, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6891
AB  - Red emitting Y2O3:Eu3+ (5 and 10 at.%) submicronic particles were synthesized through ultrasonic spray pyrolysis method from the pure nitrate solutions at 900 degrees C. The employed synthesis conditions (gradual increase of temperature within triple zone reactor and extended residence time) assured formation of spherical, dense, non-agglomerated particles that are nanostructured (crystallite size similar to 20 nm). The as-prepared powders were additionally thermally treated at temperatures up to 1200 degrees C. A bcc la-3 cubic phase presence and exceptional powder morphological features were maintained with heating and are followed with particle structural changes (crystallite growth up to 130 nm). Emission spectra were studied after excitation with 393 nm wavelength and together with the decay lifetimes for Eu3+ ion D-5(0) and D-5(1) levels revealed the effect of powder nanocrystalline nature on its luminescent properties. The emission spectra showed typical Eu3+ D-5(0)- GT F-7(i) (i = 0, 1, 2, 3, 4) transitions with dominant red emission at 611 nm, while the lifetime measurements revealed the quenching effect with the rise of dopant concentration and its more consistent distribution into host lattice due to the thermal treatment. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Photoluminescent properties of nanostructured Y2O3:Eu3+ powders obtained through aerosol synthesis
VL  - 32
IS  - 12
SP  - 1606
EP  - 1611
DO  - 10.1016/j.optmat.2010.05.023
ER  - 
@article{
author = "Marinkovic, K. and Mančić, Lidija and Gomez, Luz S. and Rabanal, Maria Eugenia and Dramićanin, Miroslav and Milošević, Olivera",
year = "2010",
abstract = "Red emitting Y2O3:Eu3+ (5 and 10 at.%) submicronic particles were synthesized through ultrasonic spray pyrolysis method from the pure nitrate solutions at 900 degrees C. The employed synthesis conditions (gradual increase of temperature within triple zone reactor and extended residence time) assured formation of spherical, dense, non-agglomerated particles that are nanostructured (crystallite size similar to 20 nm). The as-prepared powders were additionally thermally treated at temperatures up to 1200 degrees C. A bcc la-3 cubic phase presence and exceptional powder morphological features were maintained with heating and are followed with particle structural changes (crystallite growth up to 130 nm). Emission spectra were studied after excitation with 393 nm wavelength and together with the decay lifetimes for Eu3+ ion D-5(0) and D-5(1) levels revealed the effect of powder nanocrystalline nature on its luminescent properties. The emission spectra showed typical Eu3+ D-5(0)- GT F-7(i) (i = 0, 1, 2, 3, 4) transitions with dominant red emission at 611 nm, while the lifetime measurements revealed the quenching effect with the rise of dopant concentration and its more consistent distribution into host lattice due to the thermal treatment. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Photoluminescent properties of nanostructured Y2O3:Eu3+ powders obtained through aerosol synthesis",
volume = "32",
number = "12",
pages = "1606-1611",
doi = "10.1016/j.optmat.2010.05.023"
}
Marinkovic, K., Mančić, L., Gomez, L. S., Rabanal, M. E., Dramićanin, M.,& Milošević, O.. (2010). Photoluminescent properties of nanostructured Y2O3:Eu3+ powders obtained through aerosol synthesis. in Optical Materials, 32(12), 1606-1611.
https://doi.org/10.1016/j.optmat.2010.05.023
Marinkovic K, Mančić L, Gomez LS, Rabanal ME, Dramićanin M, Milošević O. Photoluminescent properties of nanostructured Y2O3:Eu3+ powders obtained through aerosol synthesis. in Optical Materials. 2010;32(12):1606-1611.
doi:10.1016/j.optmat.2010.05.023 .
Marinkovic, K., Mančić, Lidija, Gomez, Luz S., Rabanal, Maria Eugenia, Dramićanin, Miroslav, Milošević, Olivera, "Photoluminescent properties of nanostructured Y2O3:Eu3+ powders obtained through aerosol synthesis" in Optical Materials, 32, no. 12 (2010):1606-1611,
https://doi.org/10.1016/j.optmat.2010.05.023 . .
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