Concentration and crystallite size dependence of the photoluminescence in YAG:Ce~(3+) nanophosphor

机译：YAG：Ce〜（3+）纳米磷光体中光致发光的浓度和微晶尺寸依赖性

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Nanocrystalline yttrium aluminum garnet doped with Cerium (YAG:Ce~(3+)), 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℃, 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.

机译：掺杂铈的纳米晶钇铝石榴石（YAG：Ce〜（3+））是通过改进的溶胶-凝胶法合成的，该溶胶-凝胶法由盐在水性介质中的混合物组成。通过X射线衍射和透射电子显微镜表征结构和形态。获得了单晶相，其微晶尺寸取决于退火温度（分别为800至1150℃），范围为26 nm至96 nm。进行了光致发光对微晶尺寸和离子浓度的依赖性。实验结果表明，获得最高发光的最佳离子浓度对应于0.1 mol％，并且随着微晶尺寸的增加而增加。讨论了改进的溶胶-凝胶法制备纳米晶YAG的可行性。

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来源
《Fourth International Conference on Solid State Lighting》|2004年|P.274-283|共10页
会议地点 DenverCO(US)
作者
Raquel Ovalle; Alejro Arredondo; Luis A. Diaz-Torres; Pedro Salas; Carlos Angeles; Ruben A. Rodriguez; Marco A. Meneses; Elder De la Rosa;
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Centro de Investigaciones en Optica, Leon, Gto. 37150 Mexico;

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原文格式 PDF
正文语种 eng
中图分类晶体的光学性质;
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4. Concentration and crystallite size dependence of the photoluminescence in YAG:Ce~(3+) nanophosphor [C] . Raquel Ovalle, Alejandro Arredondo, Luis A. Diaz-Torres, International Conference on Solid State Lighting . 2004

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Concentration and crystallite size dependence of the photoluminescence in YAG:Ce~(3+) nanophosphor

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