INFLUENCE OF BISMUTH INCORPORATION ON THE OPTICAL-PROPERTIES OF A-SE FILMS

Authors
BETTSTELLER R WITTE H HERMS W FREISTEDT H
Citation
R. Bettsteller et al., INFLUENCE OF BISMUTH INCORPORATION ON THE OPTICAL-PROPERTIES OF A-SE FILMS, Solid state communications, 87(9), 1993, pp. 763-765
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
87
Issue
9
Year of publication
1993
Pages
763 - 765
Database
ISI
SICI code
0038-1098(1993)87:9<763:IOBIOT>2.0.ZU;2-R
Abstract
Optical transmission measurements on a-Se1-xBix films were performed i n spectral range from 550 to 2500 nm. A drastic decrease of the TAUC- gap, E04- gap and of the slopes of the TAUC- plots B1/2 was obtained a bove a Bismuth concentration of 0.2 at%, i.e. the Bismuth incorporatio n caused a decrease of the optical gap and a flattening of the tail st ates. It is assumed that strong distortions within the chain like stru cture of a-Se films appear with increased bonding between Se and Bi.