Electron and hole trapping in PbCl2 and PbCl2:Tl crystals

被引：16
作者：
Nistor, SV [1 ]
Goovaerts, E
Stefan, M
Schoemaker, D
机构：
[1] Univ Instelling Antwerp, Dept Phys, B-2610 Wilrijk, Belgium
[2] Inst Atom Phys, NIMP, R-76900 Bucharest, Romania
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 141卷 / 1-4期
关键词：
ESR; paramagnetic; centers; irradiation; electron; hole; self-trapping;
D O I：
10.1016/S0168-583X(98)00051-2
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Formation of primary paramagnetic point defects under low temperature X-ray irradiation have been studied by ESR and optical absorption in pure and thallium doped PbCl2 single crystals. Besides Pb-2(3+) self-trapped electron (STEL) centers the PbCl2 : Tl crystals exhibit trapped-electron (PbTl)(+)-type centers. Based on production properties of paramagnetic centers it is suggested that besides forming Tl-2 divided by centers the holes are self trapped at pairs of neighbouring Cl- anions resulting in V-k type centers with various orientation and length of the Cl-Cl axis. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：538 / 541
页数：4
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