Luminescent properties of SrAl2O4: Eu, Dy material prepared by the gel method

被引：97

作者：

Tang, ZL ^{[1
]}

Zhang, F ^{[1
]}

Zhang, ZT ^{[1
]}

Huang, CY ^{[1
]}

Lin, YH ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2000年 / 20卷 / 12期

基金：

中国国家自然科学基金;

关键词：

grain size; optical properties; powders-solid state reaction; sol-gel processes; SrAl2O4;

D O I：

10.1016/S0955-2219(00)00092-3

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

SrAl2O4:Eu,Dy materials were first prepared by the gel method. Compared with samples prepared by solid state reactions, the grain size of the gel method is greatly reduced to nanometer grade. A clear blue shift occurs in the excitation and emission spectra of nano SrAl2O4:Eu,Dy, of which the peak of the excitation and emission spectra are at 323 and 500 nm respectively. The brightness of nano SrAl2O4:Eu,Dy is greatly reduced. The blue shift and the change of luminescent intensity in nano SrAl2O4:Eu,Dy materials can be attributed to the effect of surface energy. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：2129 / 2132

页数：4

共 9 条

[1]

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[2] THE POLYACRYLAMIDE-GEL - A NOVEL ROUTE TO CERAMIC AND GLASSY OXIDE POWDERS [J].