Photoluminescence properties and energy transfer behavior of Eu2+/Tb3+ co-doped Ba3Sc(PO4)3 phosphors

被引：11
|
作者：
Zhang, Yuanyuan [1 ]
Mei, Lefu [1 ]
Liu, Haikun [1 ]
Ma, Xiaoxue [1 ]
Huang, Zhaohui [1 ]
Liao, Libing [1 ]
机构：
[1] China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2015年 / 41卷 / 10期
关键词：
Phosphors; Crystal structure; Luminescence; Solid state; LUMINESCENCE; UV; EVOLUTION; EMISSION; TB3+; EU; LN;
D O I：
10.1016/j.ceramint.2015.07.193
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ba3Sc(PO4)(3):Eu2+,Tb3+ (BSP:Eu2+,Tb3+) phosphors were successfully prepared via conventional high-temperature solid-state reaction, their luminescence properties as well as energy transfer mechanism have been investigated in detail. The energy transfer mechanism was proposed to be the dipole-quadrupole mechanism, and the energy transfer efficiency was also estimated. BSP:Eu2+,Tb3+ phosphors showed a broad emitting band centered at 518 nm and several sharp emission peaks, which were assigned to the 5d -> 4f allowed transitions of Eu2+ ions and characteristic optical D-5(4)-F-7(J) (J=6, 5, 4, and 3) transitions of Tb3+ ions, respectively. The emission color of BSP:Eu2+,yTb(3+) exhibited a controlled luminescence evolution in the green area owing to the Eu2+-Tb3+ energy transfer process. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：14698 / 14702
页数：5
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