Effect of La and Zn addition on Y2O3:Eu phosphors
Effect of La and Zn addition on Y2O3:Eu phosphors
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DOI：
10.1016/j.apsusc.2004.10.102
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发表时间：
2005-05
影响因子：
6.7
通讯作者：
S. Sakuma;H. Kominami;Y. Neo;T. Aoki;Y. Nakanishi;H. Mimura
中科院分区：
文献类型：
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作者：
S. Sakuma;H. Kominami;Y. Neo;T. Aoki;Y. Nakanishi;H. Mimura
采用柠檬酸凝胶法制备(Y1−xLax)2O3:Eu,Zn荧光粉，开发出在低激发电压下具有高亮度和良好色度的红光荧光粉。研究了结构和发光性能对 La/Y 组成比和 Zn 添加量的依赖性。 x=0.1 的 La 添加改善了 (Y1−xLax)2O3:Eu 荧光粉的结构、阴极发光 (CL) 亮度、CL 效率和色度。尽管Zn掺杂在结构、发光亮度、发光效率和色度方面有进一步改善的趋势，但不添加La的Y2O3:Eu,Zn荧光粉表现出最好的特性。
(Y1−xLax)2O3:Eu,Zn phosphors have been prepared by a citric acid gel method to develop a red-emitting phosphor with high luminance and good chromaticity under a low excitation voltage. The dependence of structural and luminescent properties on the composition ratio of La/Y and on the Zn addition was investigated. The La addition of x=0.1 improves structural, cathode luminescence (CL) luminance, CL efficiency and chromaticity for the (Y1−xLax)2O3:Eu phosphors. Though the Zn doping has a tendency of further improvement in structure, CL luminance, CL efficiency and chromaticity, the Y2O3:Eu,Zn phosphor without La addition shows the best characteristic.