Long afterglow in Pr3+ and Li+ co-doped CaZrO3

被引：40
|
作者：
Liu, ZW [1 ]
Liu, YL [1 ]
Zhang, JX [1 ]
Rong, JH [1 ]
Huang, LH [1 ]
Yuan, DS [1 ]
机构：
[1] Jinan Univ, Dept Chem, Guangzhou 510632, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2005年 / 251卷 / 4-6期
基金：
美国国家卫生研究院;
关键词：
afterglow; CaZrO3; thermoluminescence; praseodymium;
D O I：
10.1016/j.optcom.2005.03.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new phosphor CaZrO3:Li,Pr was synthesized by a traditional solid-state reaction method. The luminescent properties and thermoluminescence curves were investigated. Long afterglow was observed in the CaZrO3:Li,Pr after excitation by 254 nm light, and the duration can reach nearly 3 h in the light perception of dark-adapted human eyes (0.32 mcd/m(2)). The main emission peak was ascribed to Pr3+ ions transition from (3)p(0) -> H-3(4), and the afterglow may be ascribed to the suitable trap centers enhanced by the introduction of Li+ in the CaZrO3 host lattice. Further more, the mechanism of the afterglow was discussed. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：388 / 392
页数：5
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