| Preparation and luminescence properties of the red-emitting phosphor（Sr1-xCax）2Si5N8：Eu^2＋ with different Sr/Ca ratios |
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| 引用本文： | 腾晓明,刘元红,刘玉柱,胡运生,何华强,庄卫东.Preparation and luminescence properties of the red-emitting phosphor（Sr1-xCax）2Si5N8：Eu^2＋ with different Sr/Ca ratios[J].中国稀土学报(英文版),2009,27(1):58-61. |
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| 作者姓名： | 腾晓明 刘元红 刘玉柱 胡运生 何华强 庄卫东 |
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| 作者单位： | National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co. Ltd., Beijing 100088, China
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| 基金项目： | 国家自然科学基金，the Ministry of Science and Technology of China |
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| 摘 要： |
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| 关 键 词： | 红色荧光粉 红色发光 发光性能 制备 钙比 高温固相法 衍射图谱 发射光谱 |
| 收稿时间： | 8 April 2008 |
Preparation and luminescence properties of the red-emitting phosphor (Sr1-xCax) 2Si5N8:Eu2+ with different Sr/Ca ratios |
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| TENG Xiaoming,LIU Yuanhong,LIU Yuzhu,Hu Yunsheng,HE Huaqiang,ZHUANG Weidong.Preparation and luminescence properties of the red-emitting phosphor (Sr1-xCax) 2Si5N8:Eu2+ with different Sr/Ca ratios[J].Journal of Rare Earths,2009,27(1):58-61. |
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| Authors: | TENG Xiaoming LIU Yuanhong LIU Yuzhu Hu Yunsheng HE Huaqiang ZHUANG Weidong |
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| Affiliation: | (National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co. Ltd., Beijing 100088, China) |
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| Abstract: | A series of Eu2+-doped ternary nitride phosphors, with a formula of (Sr1-xCax)2Si5N8: Eu2+, were synthesized by high-temperature solid-state method. The structure and luminescence properties were characterized, indicating the potential application as a red phosphor in the phosphor-converted white light-emitting diodes. The X-ray diffraction patterns showed that the Sr2Si5N8 and Ca2Si5N8 phases were generated at each end of (Sr1-xCax)2Si5N8: Eu2+ and coexisted in the range of 0.5≤x≤0.75. The emission spectra showed broad emission bands originating from the 4f65d1→4f7 transition of Eu2+ ions. The emission peak changed with the variations in Ca2+ concentration. |
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| Keywords: | luminescence alkaline earth silicon nitride white LEDs rare earths |
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