| KAlF4：Ce,Tb磷光体的发光特性及Ce^3＋对Tb^3＋的敏化作用 |
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| 引用本文： | 吴根华,陈荣.KAlF4：Ce,Tb磷光体的发光特性及Ce^3＋对Tb^3＋的敏化作用[J].光谱学与光谱分析,1997,17(3):6-9. |
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| 作者姓名： | 吴根华 陈荣 |
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| 作者单位： | 北京大学化学与分子工程学院 |
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| 摘 要： | 采用溶液反应法和高温固相反应法合成了ＫＡ１Ｆ４基质化合物及ＫＡ１Ｆ：Ｃｅ，Ｔｂ磷光体，测定了磷光体的激发光谱和发射光谱，研究了在碱金属氟铝酸盐基质中Ｃｅ＾３＋对Ｔｂ＾３＋的能量传递，根据Ｃｅ＾３＋，Ｔｂ＾３＋在ＫＡｌＦ４中的能级关系，分析了其发光特性和Ｃｅ＾３＋对Ｔｂ＾３＋能量传递过程。
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| 关 键 词： | KAlF4 发光特性 敏化 铈 铽 磷光 氟铝酸钾 |
Luminescence properties and energy transfer between Ce3+ and Tb3+ ions in KA1F4: Ce, Tb] |
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| G Wu,R Chen,Q Zhang.Luminescence properties and energy transfer between Ce3+ and Tb3+ ions in KA1F4: Ce, Tb][J].Spectroscopy and Spectral Analysis,1997,17(3):6-9. |
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| Authors: | G Wu R Chen Q Zhang |
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| Institution: | Department of Chemistry, Anqing Normal College, 246011 Anqing. |
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| Abstract: | Matrix KA1F4 was prepared through reaction of mixtures of solution K2CO3 upon certain solution of Al(OH)3 plus HF(40%),dehydrating at 100 degrees C and annealing for 48hr at 450 degrees C. A series of KA1F4 : Ce,Tb phosphors were synthesized by a solid reaction method. Their excitation and emission spectra have been investigated. It was observed that Ce3+ can effectively sensitize Tb3+ in KA1F4, so as to enhance the emission of Tb3+ significantly. KA1F4 :Ce,Tb might be a new high efficient green emitting phosphor. |
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