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：

中国国家自然科学基金;

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

页码：388 / 392

页数：5

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