Syntheses and Photoluminescence Properties of Eu2+/Tb3+ Doped Sr2Si5N8 Phosphors

被引：0

作者：

Peng Xia ^{[1
,2
]}

Li Shu-Xing ^{[1
,2
]}

Liu Xue-Jian ^{[1
]}

Huang Yi-Hua ^{[1
]}

Huang Zheng-Ren ^{[1
]}

Li Hui-Li ^{[3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2015年 / 30卷 / 04期

基金：

中国国家自然科学基金;

关键词：

alkaline-earth-silicon-nitrides; carbothermal reduction and nitridation method; luminescence; energy transfer; LUMINESCENCE PROPERTIES; ALPHA-SIALON; SR; CA; BA; M=CA;

D O I：

暂无

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：

Eu2+/Tb3+ doped Sr2Si5N8 phosphors were prepared by carbothermal reduction and nitridation method. The luminescence of Tb3+/Eu2+ co-doped Sr2Si5N8 were investigated. The experimental results indicated that owing to spin-allowed f -> d transition rule the four emission lines located at 490, 543, 585, and 623 nm which ascribed to the D-5(4)-> F-7(j) (j = 6, 5, 4, 3) transitions were observed under 330 nm excitation. No obvious changes in spectral line shape were observed for Sr2Si5N8:Eu2+ co-doped with Tb3+. However, the emission intensity was improved by about 20% with Tb3+ doping concentration of x = 0.01 mainly because of the electric multipole energy transfer from Tb3+ to Eu2+.

引用

页码：397 / 400

页数：4

共 22 条

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