X-ray excited charge transfer luminescence of ytterbium-containing aluminium garnets

被引：87
|
作者：
Guerassimova, N
Garnier, N
Dujardin, C
Petrosyan, AG
Pedrini, C
机构：
[1] Univ Lyon 1, CNRS, Lab Physicochim Mat Luminescents, UMR 5620, F-69622 Villeurbanne, France
[2] Moscow MV Lomonosov State Univ, Fac Phys, Synchrotron Radiat Lab, Moscow 119899, Russia
[3] Armenian Natl Acad Sci, Inst Phys Res, Ashtarak 378410 2, Armenia
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 339卷 / 3-4期
关键词：
D O I：
10.1016/S0009-2614(01)00331-1
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：
We report on measurements of X-ray excited charge Transfer luminescence occurring in Yb3+-doped yttrium aluminium garnet (YAG:Yb) and ytterbium aluminium garnet (YbAG). The temperature dependence of luminescence was investigated in variously Yb3+-doped crystals. The fluorescence intensity and decay time drop drastically at low temperatures (T < 100 K), where thermoluminescence peaks are observed. The strong afterglow occurring in the temperature range of the glow peaks reflects trapping effects. Data show that YAG:Yb crystals are potentially good scintillators for solar neutrino detection, and they can still be optimised in terms of efficiency and lifetime. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
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页码：197 / 202
页数：6
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