| Enhanced NIR emission in Ce^3＋/Er^3＋-doped YAG induced by Bi^3＋ doping |
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| 引用本文： | 刘小海,肖思国,向志锋,周碧遥,文睛,阳效良,金湘亮.Enhanced NIR emission in Ce^3＋/Er^3＋-doped YAG induced by Bi^3＋ doping[J].Chinese Optics Letters,2013(12):76-79. |
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| 作者姓名： | 刘小海 肖思国 向志锋 周碧遥 文睛 阳效良 金湘亮 |
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| 作者单位： | [1]Faculty of Materials, Optoelectronics and Physics, Institute for Nanophysics and Rare-earth Luminescence, Xiangtan University, Xiangtan 411105, China [2]Faculty of Materials, Optoelectronics and Physics, Xiangtan University, Xiangtan 411105, China |
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| 基金项目： | This work was supported by the National Natural Sci- ence Foundation of China （Nos. 61233010 and 51372214）, the Hunan Provincial Natural Science Foundation of China （No. 12JJ3063）, and the Open Project of State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Academy of Science （No. Applied Chemistry, Chinese RERU2013017）. |
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| 摘 要： | Ce^3＋/Er^3＋/Bi^3＋ triply-doped yttrium aluminum garnet （YAG） is synthesized using co-precipitation method. The Bi^3＋ concentration-dependent near-infrared （NIR） emission behavior is systemically in- vestigated. The NIR emission of Er^3＋ ions at 1531 nm is enhanced threefold by the addition of 7 mol% Bi^3＋. Bi^3＋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→Ce^3＋ →Er^3＋ and the Bi^3＋ doping-induced adjustment of the local environment for Ce^3＋ and Er^3＋ ions.
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| 关 键 词： | 近红外发光 重掺杂 YAG 诱导 荧光 稀土离子 铈 局部环境 |
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