Enhanced NIR emission in Ce3+/Er3+-doped YAG induced by Bi3+ doping

被引：7
|
作者：
Liu, Xiaohai [1 ]
Xiao, Siguo [1 ]
Xiang, Zhifeng [1 ]
Zhou, Biyao [1 ]
Wen, Qing [1 ]
Yang, Xiaoliang [1 ]
Jin, Xiangliang [2 ]
机构：
[1] Xiangtan Univ, Fac Mat Optoelect & Phys, Inst Nanophys & Rare Earth Luminescence, Xiangtan 411105, Peoples R China
[2] Xiangtan Univ, Fac Mat Optoelect & Phys, Xiangtan 411105, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2013年 / 11卷 / 12期
基金：
中国国家自然科学基金;
关键词：
SINGLE-CRYSTALLINE FILMS; ENERGY-TRANSFER; PHOTOLUMINESCENCE; LUMINESCENCE;
D O I：
10.3788/COL201311.122602
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Ce3+ /Er3+/Bi3+ triply-doped yttrium aluminum garnet (YAG) is synthesized using co-precipitation method. The Bi3+ concentration-dependent near-infrared (NIR) emission behavior is systemically investigated. The NIR emission of Er3+ ions at 1531 nm is enhanced threefold by the addition of 7 mol% Bi3+. Bi3+ doping results in the formation of exciton in YAG and the variation in the local environment of the doped rare-earth ions. The enhancement in NIR luminescence is ascribed to the combined effects of the sensitization of exciton -> Ce3+ -> Er3+ and the Bi3+ doping-induced adjustment of the local environment for Ce3+ and Er3+ ions.
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页数：4
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