| A red oxide phosphor,SreScAlO5：Eu^2＋ with perovskite-type structure,for white light-emitting diodes |
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| 引用本文： | 周天亮,宋振,宋西平,边柳,刘泉林.A red oxide phosphor,SreScAlO5：Eu^2＋ with perovskite-type structure,for white light-emitting diodes[J].中国物理 B,2010(12):549-552. |
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| 作者姓名： | 周天亮 宋振 宋西平 边柳 刘泉林 |
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| 作者单位： | School of Materials Science ＆ Engineering and State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （Grant No. 90922027）, and the National High Technology Research and Development Program of China （Grant No. 2009AA03Z432）. |
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| 摘 要： | Sr2ScAlO5：Eu^2＋, a red oxide phosphor with a perovskite-type structure, has been synthesized through a solid-state reaction and its luminescence properties have been investigated. An absorption band centering at 450 nm is observed from the diffuse reflection spectra and the excitation spectra, indicating that the phosphor can match perfectly with the blue light of InGaN light-emitting diodes. A broad red emission band at 620 nm is found from the emission spectra, originating from the 4f^65d-4f^7 transition of the Eu^2＋ ions. The best doping content of Eu in this material is about 5%. S Sr2ScAlO5：Eu^2＋ is a highly promising red phosphor for use in white light-emitting diodes.
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| 关 键 词： | 白光发光二极管 钙钛矿型结构 铕离子 氧化磷 固相反应合成 红色荧光粉 漫反射光谱 发光性能 |
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