Mechanism of long phosphorescence of SrAl2O4:Eu2+, Dy3+ and CaAl2O4:Eu2+, Nd3+

被引：506

作者：

Yamamoto, H ^{[1
]}

Matsuzawa, T ^{[1
]}

机构：

[1] NEMOTO & CO LTD,SUGINAMI KU,TOKYO 168,JAPAN

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷

关键词：

phosphorescence; aluminates; photoconductivity;

D O I：

10.1016/S0022-2313(97)00012-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The intense and long-lasting phosphorescence of SrAl2O4:Eu2+,Dy3+ and CaAl2O4:Eu2+,Nd3+ is produced by holes thermally released from the trap levels formed by Dy3+ or Nd3+, which has the optimum trap depth. Photoconductivity measurements show that the holes are supplied from the Eu2+ centers during the 4f --> 5d excitation with a low activation energy.

引用

页码：287 / 289

页数：3