CHARACTERIZATION OF CUIN(GA)SE-2 THIN-FILMS - II - MAGNETOOPTICAL PROPERTIES OF CU-RICH AND IN-RICH LAYERS

Authors
WAGNER M HOFMANN DM DIRNSTORFER I LAMPERT MD KARG F MEYER BK
Citation
M. Wagner et al., CHARACTERIZATION OF CUIN(GA)SE-2 THIN-FILMS - II - MAGNETOOPTICAL PROPERTIES OF CU-RICH AND IN-RICH LAYERS, Physica status solidi. a, Applied research, 168(1), 1998, pp. 153-161
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
168
Issue
1
Year of publication
1998
Pages
153 - 161
Database
ISI
SICI code
0031-8965(1998)168:1<153:COCT-I>2.0.ZU;2-4
Abstract
Cu- and In-rich CuIn(Ga)Se-2 thin films are investigated by magneto-op tical spectroscopy in absorption and emission. These experiments revea l that the free-exciton transition is at 1.044 eV (1.5 K). The exciton ic band gap was found to decrease with a slope of 7 meV/100 K between 100 and 300 K. Donor-acceptor pair recombinations located at 0.96 and 0.90 eV were found to originate from moderately deep donors in connect ion with shallow effective mass-like accepters, and deep accepters, re spectively.