PULSE-ANNEALING STUDY OF PHOTO-STIMULATED LUMINESCENCE AND TRAPPED-HOLE STATES IN BAFBR-EU2+

Authors
OHNISHI A AKIMOTO I KANNO K IWABUCHI Y MORI N
Citation
A. Ohnishi et al., PULSE-ANNEALING STUDY OF PHOTO-STIMULATED LUMINESCENCE AND TRAPPED-HOLE STATES IN BAFBR-EU2+, Journal of luminescence, 72-4, 1997, pp. 775-777
Citations number
8
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
72-4
Year of publication
1997
Pages
775 - 777
Database
ISI
SICI code
0022-2313(1997)72-4:<775:PSOPLA>2.0.ZU;2-7
Abstract
Photo-stimulated luminescence (PSL) with F(Br-)-band light was studied with a pulse annealing technique in the X-rayed BaFBr and BaFBr:Eu2crystals. It was found that the PSL band due to Eu3+ centers in BaFBr: Eu2+ is kept unchanged for pulse annealing up to 280 K, though the one due to O- centers in BaFBr comes to disappear after pulse annealing a round 200 K. This clearly indicates that Eu2+ ion plays an important r ole as the hole-trap in the image storage.