ON THE ORIGIN OF THE THERMOLUMINESCENCE OF AL2O3CR,NI

Authors
POKORNY P IBARRA A
Citation
P. Pokorny et A. Ibarra, ON THE ORIGIN OF THE THERMOLUMINESCENCE OF AL2O3CR,NI, Journal of physics. Condensed matter, 5(40), 1993, pp. 7387-7396
Citations number
24
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
5
Issue
40
Year of publication
1993
Pages
7387 - 7396
Database
ISI
SICI code
0953-8984(1993)5:40<7387:OTOOTT>2.0.ZU;2-Z
Abstract
The recently discovered high-intensity thermoluminescence (TL) emissio n in Al2O3 doped with Cr and Ni is analysed more deeply by measuring t he effects of x-ray irradiation on the optical absorption in parallel with the TL process, together with the effect of optical bleaching. It is proposed that the high-intensity peak is due to oxygen vacancies, induced by the presence of Ni. The main recombination centre is Cr.