TRIPLET EXCITONS IN CHALCOGENIDE GLASSES AS ELUCIDATED BY OPTICALLY DETECTED MAGNETIC-RESONANCE

Authors
MAO D OHLSEN WD TAYLOR PC
Citation
D. Mao et al., TRIPLET EXCITONS IN CHALCOGENIDE GLASSES AS ELUCIDATED BY OPTICALLY DETECTED MAGNETIC-RESONANCE, Physical review. B, Condensed matter, 48(7), 1993, pp. 4428-4432
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
7
Year of publication
1993
Pages
4428 - 4432
Database
ISI
SICI code
0163-1829(1993)48:7<4428:TEICGA>2.0.ZU;2-S
Abstract
The photoluminescence in glassy AS2S3, AS2Se3, and Cu. (As0.4Se0.6)100 -x has been studied by optically detected magnetic resonance (ODMR) at 3 and 16 GHz. Experimental data reveal problems with existing triplet exciton models and suggest possible modifications. The addition of Cu into the glass has an insignificant effect on the ODMR signals. This behavior, although surprising, is consistent with a high degree of loc alization of triplet excitons at As atoms.