The unusual temperature dependence of the Eu2+ fluorescence lifetime in CaF2 crystals

被引：38

作者：

Duan, CK

Meijerink, A

Reeves, RJ

Reid, MF

机构：

[1] Univ Canterbury, Dept Phys & Astron, Christchurch, New Zealand

[2] Chongqing Univ Post & Telecommun, Inst Appl Phys, Chongqing 400065, Peoples R China

[3] Univ Utrecht, Dept Condensed Matter, Debye Inst, NL-3508 TA Utrecht, Netherlands

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 408卷

关键词：

fluorescene lifetime; europium; CaF2;

D O I：

10.1016/j.jallcom.2005.01.077

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fluorescence lifetimes of Eu2+ doped in CaF2 are measured at various temperatures between 4 and 450 K. The lifetime increases between 100 and 320 K, in contrast to the usual lifetime-temperature dependence. At higher or lower temperatures, the lifetime decreases with increasing temperature. This phenomenon is explained by simulation of the energy levels and lifetimes of low-lying 4f(6)5d states involved in the fluorescence. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：784 / 787

页数：4

共 14 条

[11] TEMPERATURE-DEPENDENCE OF MULTIPHONON NONRADIATIVE DECAY AT AN ISOLATED IMPURITY CENTER [J].