Thermally stimulated luminescence from single crystals of LiYF4 and its constituent fluorides

被引：12
|
作者：
Sangeeta
Sabharwal, SC [1 ]
Gesland, JY
机构：
[1] Bhabha Atom Res Ctr, Tech Phys & Prototype Engn Div, Crystal Technol Sect, Bombay 400085, Maharashtra, India
[2] Univ Maine, F-72085 Le Mans 9, France
来源：
JOURNAL OF LUMINESCENCE | 2001年 / 93卷 / 02期
关键词：
thermoluminescence; kinetics; optical absorption;
D O I：
10.1016/S0022-2313(01)00170-3
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Thermally stimulated luminescence (TSL) from YF3, LiYF4 and LiYF4 (U4+) crystals has been investigated for the first time. While an undoped LiYF4 crystal exhibits very weak TSL, the emission from YF3 is found to be intense. On doping a LiYF4 crystal with uranium, its TSL output is observed to get considerably enhanced. The emission spectra recorded for all the crystals are found to be identical and characteristic of the constituent Y3+ ions. This is an important result which shows that in the process of TSL, U4+ ion behaves as a donor of excitation energy to Y3+ ions. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：167 / 172
页数：6
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