Luminescence properties and energy transfer in AlN:Ce3+,Tb3+ phosphors

被引：16
|
作者：
Hu, Wei-Wei [1 ]
Zhu, Qiang-Qiang [1 ]
Hao, Lu-Yuan [1 ]
Xu, Xin [1 ]
Agathopoulos, Simeon [2 ]
机构：
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Key Lab Mat Energy Convers, Chinese Acad Sci, Hefei 230026, Anhui, Peoples R China
[2] Univ Ioannina, Mat Sci & Engn Dept, GR-45110 Ioannina, Greece
来源：
MATERIALS RESEARCH BULLETIN | 2014年 / 51卷
基金：
美国国家科学基金会;
关键词：
nitrides; optical materials; X-ray diffraction; luminescence; SENSITIZED LUMINESCENCE; CE3+; NANOPARTICLES; CERAMICS; EMISSION; TB;
D O I：
10.1016/j.materresbull.2013.12.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
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 AIN: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 AIN:Ce3+,Tb3+ phosphors. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：224 / 227
页数：4
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