| 温度对于掺杂在SrAl12O19中Pr3+4f5d发射的影响 |
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| 引用本文： | 祁士群,黄世华,由芳田,王大伟,高长城.温度对于掺杂在SrAl12O19中Pr3+4f5d发射的影响[J].光谱学与光谱分析,2008,28(5):1012-1015. |
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| 作者姓名： | 祁士群 黄世华 由芳田 王大伟 高长城 |
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| 作者单位： | 发光与光信息技术教育部重点实验室,北京交通大学光电子技术研究所,北京,100044 |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划) |
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| 摘 要： | 测量了在真空紫外光激发下,SrAl12O19∶Pr3 在不同温度(308~483 K)时的发射光谱,同时观测到了电偶极禁戒的4f2→4f2和电偶极允许的4f5d→4f2跃迁。随温度升高,4f5d→4f2与1S0发射的相对强度逐渐增强。运用Pr3 4f2组态最高的能级—1S0能级和4f5d组态最低能级间的热平衡模型成功解释了SrAl12O19∶Pr3 发射光谱随温度变化的现象。
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| 关 键 词： | 三价镨离子 真空紫外(VUV) 4f5d组态 热激发 |
| 文章编号： | 1000-0593(2008)05-1012-04 |
| 修稿时间： | 2006年11月6日 |
The Effect of Temperature on the 4f5d Emission of Pr3+ in the pr3+-Doped SrAl12O19 |
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| QI Shi-qun,HUANG Shi-hua,YOU Fang-tian,WANG Da-wei,GAO Chang-cheng.The Effect of Temperature on the 4f5d Emission of Pr3+ in the pr3+-Doped SrAl12O19[J].Spectroscopy and Spectral Analysis,2008,28(5):1012-1015. |
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| Authors: | QI Shi-qun HUANG Shi-hua YOU Fang-tian WANG Da-wei GAO Chang-cheng |
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| Institution: | Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China. qishi.yyan@yahoo.com.cn |
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| Abstract: | The emission spectra of SrAl12O19 : Pr3+ at temperature from 308 to 483 K were investigated under vacuum ultraviolet excitation. Both the dipole-forbidden 4f2 --> 4f2 transition and the dipole-allowed 4f5d --> 4f2 transitions were observed. The intensity of the 4f5d --> 4f2 emission relative to that of the 4f2 --> 4f2 emission increased with increasing temperature. A thermal equilibrium model was applied to the system consisting of the 1S0 state and the lowest 4f5d states of Pr3+, and the temperature dependence of emission spectra of Pr3+ in the Pr(3+)-doped SrAl12O19 was well explained. |
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| Keywords: | Trivalent praseodymium ion VUV excitation 4f5d configuration Thermal excitation |
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