| Luminescent Properties of Green Phosphor Ca8Mg（SiO4 ）4 Cl2：EU^2＋ , DY^3＋ for LED Applications |
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| 引用本文： | 方英,庄卫东,胡运生,叶信宇,黄小卫.Luminescent Properties of Green Phosphor Ca8Mg（SiO4 ）4 Cl2：EU^2＋ , DY^3＋ for LED Applications[J].中国稀土学报(英文版),2007,25(5):573-577. |
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| 作者姓名： | 方英 庄卫东 胡运生 叶信宇 黄小卫 |
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| 作者单位： | [1]National Engineering Research Center for Rare Earth Materials, General Research Institute for Non-Ferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing 100088, China [2]Department of Chemistry, Shangqiu Normal University, Shangqiu 476000, China |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | The new phosphor calcium magnesium chlorosilicate, codoped with Eu^2＋ and Dy^3＋, was synthesized with the help of the high temperature solid state reaction in reducing atmosphere. The excitation and emission spectra were very similar to that of Ca8Mg（SiO4）4Cl2 ：Eu^2＋, and the Dy^3＋ concentration influenced the emission intensity of this phosphor. The intensity of Eu^2＋ and Dy^3＋ codoped CMSC was stronger than that of Eu^2＋ singly doped CMSC. The emission spectrum of the Dy^3＋ ion overlapped the absorption band of the Eu^2＋ ion, indicating that an energy transfer from Dy^3＋ to Eu^2＋ took place in CMSC：Eu^2＋, Dy^3＋ phosphor. The mechanism of the energy transfer from Dy^3＋ tO Eu^2＋, in this phosphor, might be resonant energy transfer.
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| 关 键 词： | 稀土元素 化学结构 钙 镁 化合物 |
| 文章编号： | 1002-0721（2007）05-0573-05 |
| 收稿时间： | 14 December 2006 |
| 修稿时间： | 2006-12-14 |
Luminescent Properties of Green Phosphor Ca8Mg(SiO4)4 Cl2 :Eu2+, Dy3+ for LED Applications |
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| Fang , Zhuang Weidong, Hu Yunsheng, Ye Xinyu,Huang Xiaowei.Luminescent Properties of Green Phosphor Ca8Mg(SiO4)4 Cl2 :Eu2+, Dy3+ for LED Applications[J].Journal of Rare Earths,2007,25(5):573-577. |
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| Authors: | Fang Zhuang Weidong Hu Yunsheng Ye Xinyu Huang Xiaowei |
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| Affiliation: | 1. National Engineering Research Center for Rare Earth Materials, General Research Institute for Non-Ferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing 100088, China; 2. Department of Chemistry, Shangqiu Normal University, Shangqiu 476000, China |
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| Abstract: | The new phosphor calcium magnesium chlorosilicate, codoped with Eu2 and Dy3 , was synthesized with the help of the high temperature solid state reaction in reducing atmosphere. The excitation and emission spectra were very similar to that of Ca8Mg(SiO4)4Cl2Eu2 , and the Dy3 concentration influenced the emission intensity of this phosphor. The intensity of Eu2 and Dy3 codoped CMSC was stronger than that of Eu2 singly doped CMSC. The emission spectrum of the Dy3 ion overlapped the absorption band of the Eu2 ion, indicating that an energy transfer from Dy3 to Eu2 took place in CMSCEu2 , Dy3 phosphor. The mechanism of the energy transfer from Dy3 to Eu2 , in this phosphor, might be resonant energy transfer. |
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| Keywords: | calcium magnesium chlorosilicate phosphor energy transfer Eu2 Dy3 rare earths |
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