| Y3Al5O12:Ce3+,Cr3+和Y3Al5O12:Ce3+,pr3+,Cr3+荧光粉体系中的能量传递 |
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| 引用本文： | 王磊,张霞,郝振东,骆永石,王笑军,张家骅.Y3Al5O12:Ce3+,Cr3+和Y3Al5O12:Ce3+,pr3+,Cr3+荧光粉体系中的能量传递[J].发光学报,2011,32(5):417-422. |
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| 作者姓名： | 王磊 张霞 郝振东 骆永石 王笑军 张家骅 |
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| 作者单位： | 1. 中国科学院 激发态重点实验室 长春光学精密机械与物理研究所, 吉林 长春 130033;
2. 中国科学院 研究生院, 北京 100039;
3. 美国乔治亚南大学 物理系, 美国 乔治亚 30460 |
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| 基金项目： | 国家自然科学基金，国家科技部项目，吉林省科技发展计划项目，中国科学院创新项目资助 |
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| 摘 要： | 通过在YAG:Ce3+和YAG:Ce3+,pr3+荧光粉体系中分别掺入Cr3+离子来提高蓝光管芯白光LED的显色指数.Cr3+离子的加入,增加了红光发射,这归因于Cr3+的2E-4 A2跃迁的零声子线和声子边带发光.Ce3+→Cr3+的能量传递是增强红光发射的重要方式,在YAG:Ce3+,Cr3+体系中,由发射光谱得到...
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| 关 键 词： | YAG 能量传递 WLED |
| 收稿时间： | 2010-11-16 |
Energy Transfer in Y_3Al_5O_(12):Ce~(3+),Cr~(3+) and Y_3Al_5O_(12):Ce~(3+),Pr~(3+),Cr~(3+) Phosphors |
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| WANG Lei,ZHANG Xia,HAO Zhen-dong,LUO Yong-shi,WANG Xiao-jun,ZHANG Jia-hua.Energy Transfer in Y_3Al_5O_(12):Ce~(3+),Cr~(3+) and Y_3Al_5O_(12):Ce~(3+),Pr~(3+),Cr~(3+) Phosphors[J].Chinese Journal of Luminescence,2011,32(5):417-422. |
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| Authors: | WANG Lei ZHANG Xia HAO Zhen-dong LUO Yong-shi WANG Xiao-jun ZHANG Jia-hua |
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| Institution: | 1. Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Eastern South Lake Road, Changchun 130033, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
3. Department of Physics, Georgia Southern University, Statesboro, Georgia 30460, USA |
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| Abstract: | Triply doped Y_3Al_5O_(12):Ce~(3+),Pr~(3+),Cr~(3+)phosphors with Ce~(3+)and Pr~(3+)substituting for Y~(3+)sites and Cr~(3+)substituting for Al~(3+)site are prepared by solid state reaction.A broad emission spectrum composed a yellow emission band from Ce~(3+),a light red emission line from Pr~(3+)and a deep red emission line from Cr~(3+), which are generated through energy transfer among the dopant ions.The study of photoluminescence and fluorescence decay indicates that there exist energy transfers from Ce... |
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| Keywords: | YAG WLED |
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