Energy transfer in Ce, Nd, and Yb co-doped YAG phosphors

被引：17
|
作者：
Wang, Lulu [1 ,2 ]
Xia, Changtai [1 ]
Xu, Peng [1 ,2 ]
Di, Juqing [1 ,2 ]
Sai, Qinglin [1 ,2 ]
Mou, Fei [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2013年 / 11卷 / 06期
基金：
中国国家自然科学基金;
关键词：
NEAR-INFRARED EMISSION; DOWNCONVERSION; CONVERSION; NM;
D O I：
10.3788/COL201311.061604
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
YAG-Ce, Nd, and Yb phosphors with a triple-doped system are prepared by conventional solid-state reaction method. The fluorescence emission and excitation spectra are measured and analyzed. The influences of Yb3+ doping concentration on the emission of Yb3+ and Nd3+ in YAG-Ce, Nd, and Yb are studied. The fluorescence decay spectra, lifetime, and energy transfer efficiency of Ce3+ in different host materials of YAG-Ce and Yb, and YAG-Ce, Nd, and Yb are also compared. Furthermore, the trends of fluorescence decay spectra and the lifetimes of Nd3+ and Yb3+ in YAG-Ce, Nd, and Yb with the increase of Yb3+ concentration are discussed. Results indicate that YAG-Ce, Nd, and Yb are good candidates for downconverting phosphor, with energy transfer efficiency reaching as high as 82.8%.
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页数：4
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