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Proceedings Paper

Concentration and crystallite size dependence of the photoluminescence in YAG:Ce3+ nanophosphor
Author(s): Raquel Ovalle; Alejandro Arredondo; Luis Armando Diaz-Torres; Pedro Salas; Carlos Angeles; Ruben A. Rodriguez; Marco Antonio Meneses; Elder De la Rosa
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Paper Abstract

Nanocrystalline yttrium aluminum garnet doped with Cerium (YAG:Ce3+), was synthesized by means of a modified sol-gel method that consists of a mixture of salts in an aqueous media. Structure and morphology were characterized by X-ray diffraction and Transmission Electron Microscopy. Single crystalline phase were obtained and the crystallite size range from 26 nm to 96 nm depending on the annealing temperature (from 800 to 1150 °C, respectively). The photoluminescence dependence on the crystallite size and ion concentration was performed. The experimental results show that the best ion concentration where the highest luminescence was obtained correspond to 0.1 mol% and that increases as the crystallite size increases. The feasibility of the modified sol-gel method for the preparation of nanocrystalline YAG is discussed.

Paper Details

Date Published: 20 October 2004
PDF: 10 pages
Proc. SPIE 5530, Fourth International Conference on Solid State Lighting, (20 October 2004); doi: 10.1117/12.566420
Show Author Affiliations
Raquel Ovalle, Ctr. de Investigaciones en Optica, A.C. (Mexico)
Alejandro Arredondo, Ctr. de Investigaciones en Optica, A.C. (Mexico)
Luis Armando Diaz-Torres, Ctr. de Investigaciones en Optica, A.C. (Mexico)
Pedro Salas, Instituto Mexicano del Petroleo (Mexico)
Carlos Angeles, Instituto Mexicano del Petroleo (Mexico)
Ruben A. Rodriguez, Univ. de Guadalajara (Mexico)
Marco Antonio Meneses, Ctr. de Investigaciones en Optica, A.C. (Mexico)
Elder De la Rosa, Ctr. de Investigaciones en Optica, A.C. (Mexico)


Published in SPIE Proceedings Vol. 5530:
Fourth International Conference on Solid State Lighting
Ian T. Ferguson; Nadarajah Narendran; Steven P. DenBaars; John C. Carrano, Editor(s)

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