Charging curves and excitation spectrum of long persistent phosphor SrAl2O4:Eu2+, Dy3+

被引：64

作者：

Jia, DD ^{[1
]}

机构：

[1] Univ Georgia, Dept Phys & Astron, Athens, GA 30605 USA

来源：

OPTICAL MATERIALS | 2003年 / 22卷 / 01期

关键词：

charging effect; excitation spectrum; long persistence and trapping;

D O I：

10.1016/S0925-3467(02)00241-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Long persistent phosphor SrAl2O4:Eu2+,Dy3+ is prepared in ceramic form. Photo-charging curves are studied and found to be due to the trapping processes of the long persistent materials. A three-level model is used to explain the nature of the charging curve. The excitation spectra of the long persistent materials are found to depend on the intensity of the excitation source and the scanning speed of the measurement. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：65 / 69

页数：5

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