Synthesis and characterization of Y <inf>2</inf> O <inf>3</inf> :Pr <sup>3+</sup> phosphor powders by simple solvent evaporation

G. Alarcón-Flores, M. García-Hipolito, M. Aguilar-Frutis, E. Zaleta-Alejandre, Cecilia Chacón, F. Ramos-Brito, S. Carmona-Téllez, J. Guzmán-Mendoza, C. Falcony

Research output: Contribution to journalArticle

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Abstract

© 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. The synthesis of trivalent praseodymium doped yttrium oxide powders (Y 2 O 3 :Pr 3+ ) by the solvent evaporation method as well as their structural and luminescent (cathodoluminescence and photoluminescence) properties are reported as a function of the concentration of the reagents and annealing temperatures in the 400 to 1100 °C range. These powders become polycrystalline in a cubic Y 2 O 3 structure at temperatures above 600 °C. An increase in the diffraction peaks intensity was observed as the temperature is increased. Transmission electron microscopy analysis showed irregular needle like crystallites and the characteristic electron diffraction rings for polycrystalline powders on samples annealing above 600 °C. Scanning electron microscopy showed that these crystallites clump into larger particles of irregular shape. Luminescence spectra show the characteristic peaks at 620 and 630 nm due to 1 D 2 to 3 H 4 transitions in Pr 3+ ions in the Y 2 O 3 host.
Original languageAmerican English
Pages (from-to)743-748
Number of pages668
JournalCeramics International
DOIs
StatePublished - 1 Jan 2014

Fingerprint

Phosphors
Powders
phosphors
Evaporation
evaporation
Crystallites
crystallites
Praseodymium
synthesis
Annealing
yttrium oxides
annealing
Cathodoluminescence
praseodymium
Yttrium oxide
clumps
cathodoluminescence
Electron diffraction
needles
Needles

Cite this

Alarcón-Flores, G. ; García-Hipolito, M. ; Aguilar-Frutis, M. ; Zaleta-Alejandre, E. ; Chacón, Cecilia ; Ramos-Brito, F. ; Carmona-Téllez, S. ; Guzmán-Mendoza, J. ; Falcony, C. / Synthesis and characterization of Y <inf>2</inf> O <inf>3</inf> :Pr <sup>3+</sup> phosphor powders by simple solvent evaporation. In: Ceramics International. 2014 ; pp. 743-748.
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Synthesis and characterization of Y <inf>2</inf> O <inf>3</inf> :Pr <sup>3+</sup> phosphor powders by simple solvent evaporation. / Alarcón-Flores, G.; García-Hipolito, M.; Aguilar-Frutis, M.; Zaleta-Alejandre, E.; Chacón, Cecilia; Ramos-Brito, F.; Carmona-Téllez, S.; Guzmán-Mendoza, J.; Falcony, C.

In: Ceramics International, 01.01.2014, p. 743-748.

Research output: Contribution to journalArticle

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T1 - Synthesis and characterization of Y 2 O 3 :Pr 3+ phosphor powders by simple solvent evaporation

AU - Alarcón-Flores, G.

AU - García-Hipolito, M.

AU - Aguilar-Frutis, M.

AU - Zaleta-Alejandre, E.

AU - Chacón, Cecilia

AU - Ramos-Brito, F.

AU - Carmona-Téllez, S.

AU - Guzmán-Mendoza, J.

AU - Falcony, C.

PY - 2014/1/1

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N2 - © 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. The synthesis of trivalent praseodymium doped yttrium oxide powders (Y 2 O 3 :Pr 3+ ) by the solvent evaporation method as well as their structural and luminescent (cathodoluminescence and photoluminescence) properties are reported as a function of the concentration of the reagents and annealing temperatures in the 400 to 1100 °C range. These powders become polycrystalline in a cubic Y 2 O 3 structure at temperatures above 600 °C. An increase in the diffraction peaks intensity was observed as the temperature is increased. Transmission electron microscopy analysis showed irregular needle like crystallites and the characteristic electron diffraction rings for polycrystalline powders on samples annealing above 600 °C. Scanning electron microscopy showed that these crystallites clump into larger particles of irregular shape. Luminescence spectra show the characteristic peaks at 620 and 630 nm due to 1 D 2 to 3 H 4 transitions in Pr 3+ ions in the Y 2 O 3 host.

AB - © 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. The synthesis of trivalent praseodymium doped yttrium oxide powders (Y 2 O 3 :Pr 3+ ) by the solvent evaporation method as well as their structural and luminescent (cathodoluminescence and photoluminescence) properties are reported as a function of the concentration of the reagents and annealing temperatures in the 400 to 1100 °C range. These powders become polycrystalline in a cubic Y 2 O 3 structure at temperatures above 600 °C. An increase in the diffraction peaks intensity was observed as the temperature is increased. Transmission electron microscopy analysis showed irregular needle like crystallites and the characteristic electron diffraction rings for polycrystalline powders on samples annealing above 600 °C. Scanning electron microscopy showed that these crystallites clump into larger particles of irregular shape. Luminescence spectra show the characteristic peaks at 620 and 630 nm due to 1 D 2 to 3 H 4 transitions in Pr 3+ ions in the Y 2 O 3 host.

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