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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
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.
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页码:14698 / 14702
页数:5
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