PHOTOSTRUCTURAL TRANSFORMATIONS AND PHOTOLUMINESCENCE FATIGUE EFFECT IN DEFORMED-CRYSTALS AND POWDERS OF AS2S3, GESE2, AND AS2SE3

Authors
BABAEV AA ZOBOV EM
Citation
Aa. Babaev et Em. Zobov, PHOTOSTRUCTURAL TRANSFORMATIONS AND PHOTOLUMINESCENCE FATIGUE EFFECT IN DEFORMED-CRYSTALS AND POWDERS OF AS2S3, GESE2, AND AS2SE3, Inorganic materials, 32(9), 1996, pp. 940-942
Citations number
13
Categorie Soggetti
Material Science
Journal title
Inorganic materials → ACNP
ISSN journal
00201685
Volume
32
Issue
9
Year of publication
1996
Pages
940 - 942
Database
ISI
SICI code
0020-1685(1996)32:9<940:PTAPFE>2.0.ZU;2-8
Abstract
Photoinduced absorption and bleaching accompanied by a shift in the tr ansmission edge and photoluminescence (PL) fatigue effect were found i n deformed powders and crystals of As2S3, GeSe2, and As2Se3 at 77 K. I n the excitation spectra of mechanically treated crystals, the PL peak shifts toward higher energies, the slope of the low-energy side of th e band decreases, and the PL intensity rises. The results are discusse d in terms of two stable structural states of molecular groups.