Ce3+,Dy3+ Co-Doped White-Light Long-Lasting Phosphor: Sr2Al2SiO7 Through Energy Transfer

被引：40

作者：

Gong, Yu ^{[1
]}

Wang, Yuhua ^{[1
]}

Li, Yanqin ^{[1
]}

Xu, Xuhui ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 06期

关键词：

ELECTRON-TRANSFER PROCESSES; CE3+-DOPED CA2AL2SIO7; LUMINESCENCE; INSULATORS; AFTERGLOW; PHOTOLUMINESCENCE; PERSISTENCE; CRYSTALS; KINETICS; GLASSES;

D O I：

10.1149/1.3371488

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

White-light long-lasting phosphor Sr2Al2SiO7:Ce3+,Dy3+ was prepared by a high temperature solid-state reaction. The energy transfer between Ce3+ and Dy3+ was systematically investigated. Through co-doped Ce3+ and Dy3+, the duration of the persistent luminescence of Sr1.975Al2SiO7:Ce-0.005,Dy-0.03 reached nearly 50 min. The decay curves and thermoluminescence spectra were used to characterize what kind of trap existed in the sample. A possible afterglow mechanism was presented and discussed. This work provides a promising approach for the development of white-light long-lasting phosphor. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3371488] All rights reserved.

引用

页码：J208 / J211

页数：4

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