| 偏硅酸钙中Pr3+的4f5d态的光谱特性及Pr3+→Gd3+的能量传递 |
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| 引用本文： | 初本莉,刘行仁,王晓君,张家骅,蒋雪茵.偏硅酸钙中Pr3+的4f5d态的光谱特性及Pr3+→Gd3+的能量传递[J].光谱学与光谱分析,2002,22(4):542-544. |
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| 作者姓名： | 初本莉 刘行仁 王晓君 张家骅 蒋雪茵 |
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| 作者单位： | 1. 中国科学院激发态物理开放研究实验室,中国科学院长春光学精密机械与物理研究所,吉林,长春,130021
2. 上海大学嘉定校区材料科学系,上海,201800 |
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| 基金项目： | 国家科委“863”资助项目，中科院知识创新工程资助项目 |
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| 摘 要： | 合成了高效发射UV光的CaSiO3:Pr^3 新型荧光体，研究了室温下Pr^3 的4f5d态的发射和激发光谱，Pr^3 的4f5d态的最低子能级向4f^2组态的^3H4，^3H6和^1G4能级跃迁产生UV发射，并不伴随有4f-4f能级跃迁的可见光发射。Pr^3 的浓度猝灭是由于辐射和无辐射能量传递造成的，同时，在CaSiO3中，存在Pr^3 →Cd^3 的能量传递，探讨了其能量传递特性。
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| 关 键 词： | 光谱特性 荧光材料 偏硅酸钙 荧光光谱 浓度猝灭 能量传递 镨（Ⅲ）钆（Ⅲ） |
| 文章编号： | 1000-0593(2002)04-0542-03 |
| 修稿时间： | 2000年6月30日 |
Luminescence Properties of Pr3+ and Energy Transfer Characteristics of Pr3+→Gd3+ in CaSiO3 |
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| Ben-li Chu,Xing-ren Liu,Xiao-jun Wang,Jia-hua Zhang,Xue-yin Jiang.Luminescence Properties of Pr3+ and Energy Transfer Characteristics of Pr3+→Gd3+ in CaSiO3[J].Spectroscopy and Spectral Analysis,2002,22(4):542-544. |
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| Authors: | Ben-li Chu Xing-ren Liu Xiao-jun Wang Jia-hua Zhang Xue-yin Jiang |
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| Institution: | Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130021, China. |
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| Abstract: | The excitation spectrum and the emission spectrum of Pr3+ in CaSiO3 under the room temperature were studied. The emission spectrum was constituted of three emission bands, corresponding to the emissions of the lowest 4f5d states to the 3H4, 3H6, 1G4 of the 4f2 states. The emission of the 3P0 and 1D2 were not observed. The concentration quenching of Pr3+ was due to the radiative and nonradiative energy transfer. There was energy transfer from Pr3+ to Gd3+, with the transfer rate of 10% of the Pr3+ emission rate. |
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| Keywords: | Pr 3+ Gd 3+ CaSiO 3 Luminescence spectrum Concentration quenching Energy transfer |
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