Synthesis of ultrafine YAG:Tb phosphor by nitrate-citrate sol-gel combustion process

被引：72
|
作者：
Zhang, JJ [1 ]
Ning, JW [1 ]
Liu, XJ [1 ]
Pan, YB [1 ]
Huang, LP [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 07期
关键词：
optical materials; oxides; chemical synthesis; luminescence;
D O I：
10.1016/S0025-5408(03)00119-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrafine terbium-doped yttrium aluminum garnet (YAG:Tb) phosphor powders are prepared by a nitrate-citrate sol-gel combustion process using 1: 1 ratio of citrate/nitrate. Phase evolution of the synthesized powder is determined by X-ray diffraction (XRD) techniques. Single-phase cubic YAG:Tb crystalline powder is obtained by calcinating the amorphous materials at 900 degreesC and no intermediate phase is observed. Transmission electronic microscope (TEM) morphology shows that the resultant YAG:Tb powders have uniform size and good homogeneity. The particle size of the product is investigated as a function of the calcination temperature. The photoluminescence (PL) spectrum of Tb3+ substituted for Y3+ in YAG with 5.0% content has been measured on samples calcined at different temperatures. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1249 / 1256
页数：8
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