Luminescence properties and energy transfer in AlN:Ce3+,Tb 3+ phosphors

被引：0
|
作者：
Hu, Wei-Wei [1 ]
Zhu, Qiang-Qiang [1 ]
Hao, Lu-Yuan [1 ]
Xu, Xin [1 ]
Agathopoulos, Simeon [2 ]
机构：
[1] Chinese Academy of Sciences Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Jinzhai Road 96, Hefei, Anhui 230026, China
[2] Materials Science and Engineering Department, University of Ioannina, GR-451 10 Ioannina, Greece
来源：
Materials Research Bulletin | 2014年 / 51卷
基金：
中国国家自然科学基金;
关键词：
Energy transfer - X ray diffraction - Luminescence - Phosphors - III-V semiconductors - Solid state reactions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Novel green-emitting AlN:Ce3+,Tb3+ phosphors were successfully synthesized by a solid-state reaction method. Single doped AlN:Ce3+ and AlN:Tb3+ phosphors could be effectively excited by ultraviolet lights and showed intense blue and green emissions, respectively. The incorporation of Ce3+ could drastically enhance the luminescence of AlN:Tb3+ powder by energy transfer. The effects of Ce3+ and Tb3+ concentrations on luminance in single and co-doped phosphors have also been studied. Analysis of the emission and excitation spectra, in conjunction with the curves of decay times, suggested that the effective energy transfer from Ce3+ to Tb3+ is mainly due to a dipole-dipole interaction in the AlN:Ce3+,Tb 3+ phosphors. © 2013 Elsevier Ltd.
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页码：224 / 227
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