Mechanism of persistent luminescence in Sr2MgSi2O7:Eu2+; Dy3+

被引：134

作者：

Dorenbos, P ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Sci Appl, NL-2629 JB Delft, Netherlands

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2005年 / 242卷 / 01期

关键词：

D O I：

10.1002/pssb.200409080

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A recently developed method to determine the energy levels of divalent lanthanide ions relative to the conduction band and valence band of host compounds is applied to Sr(2)MgS(2)iO(7) doped with Eu2+ and Dy3+. The level locations are not consistent with the widely adopted and generally believed mechanism of persistent luminescence in Eu2+ and Dy3+, doped aluminates and silicates. A new mechanism of persistent luminescence is proposed. In this mechanism Eu3+ and Dy2+ are the stable trapping centers and not Eu+ and Dy4+ as in the existing mechanism.

引用

页码：R7 / R9

页数：3

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