Publication
Title
Electron and hole trapping in irradiated :Tl single crystals
Author
Abstract
Several hole trapped centres, namely Tl2+, self-trapped hole and A-type centres, were observed by ESR in PbBr2:Tl single crystals after X-ray irradiation at 77 K. The corresponding spectra are visible up to 200 K for all three defect centres. The STH centres are observed at higher temperatures than in the undoped PbBr2 single crystals, probably due to the stabilising effect of the Tl+ impurities. The ESR parameters of the Tl2+ centre point to stronger covalency effects in PbBr2 than in the isostructural PbCl2 crystals. All hole trapped centres started decaying around 160 K, probably due to recombination with nonparamagnetic electron trapped centres. Besides a small concentration of self-trapped electron centres, no other electron trapped centres were observed.
Language
English
Source (journal)
Nuclear instruments and methods in physics research: B: beam interactions with materials and atoms. - Amsterdam
Publication
Amsterdam : 2008
ISSN
0168-583X
Volume/pages
266:12/13(2008), p. 2758-2761
ISI
000257721300022
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 03.04.2009
Last edited 22.07.2017
To cite this reference