Crystal structure and photoluminescence of (Y1-xCex)2Si3O3N4

被引：14
作者：
Lu, F. C. [1 ,2 ]
Chen, X. Y. [3 ]
Wang, M. W. [4 ]
Liu, Q. L. [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
[3] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China
[4] Univ Sci & Technol Beijing, Dept Chem, Sch Sci & Appl Sci, Beijing 100083, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2011年 / 131卷 / 02期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
Y2Si3O3N4; Crystal structure; Ce-3; doped; Photoluminescence; LUMINESCENCE PROPERTIES; ALPHA-SIALON; PHOSPHOR; EMISSION; CE3+; EU2+; Y2SI3O3N4; MELILITE;
D O I：
10.1016/j.jlumin.2010.10.032
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Oxonitridosilicate phosphors with compositions of (Y1-xCex)(2)Si3O3N4 (x=0-0 2) have been synthesized by solid state reaction method The structures and photoluminescence properties have been investigated Ce3+ ions have substituted for Y3+ ions in the lattice The emission and excitation spectra of these phosphors show the characteristic photoluminescence spectra of Ce3+ ions Based on the analyses of the diffuse reflection spectra and the PL spectra a systematic energy diagram of Ce3+ ion in the forbidden band of sample with x=0 02 is given The best doping Ce content in these phosphors is similar to 2 mol% The quenching temperature is similar to 405 K for the 2 mol% Ce content sample The luminescence decay properties were investigated The primary studies indicate that these phosphors are potential candidates for application in three-phosphor-converted white LEDs (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码：336 / 341
页数：6
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