B. Ullrich, Influence of thermal and electronic modifications of the GaAs bandgap on bistable luminescent light emitted from a thin CdS film, THIN SOL FI, 333(1-2), 1998, pp. 134-136
Bistable light emission was induced by exciting a thin (5.5 mu m) CdS film
with the 514.5-nm line of an argon laser, The infrared bistable emission of
thr thin CdS film was investigated by using n-type GaAs wafers as cut-off
filters. The loop contrast of the bistable luminescence defends on Joule he
ating and variation of the n-type carrier concentration of the wafers. The
dependence on the latter is considerably more sensitive than on the thermal
red shift of the GaAs gap. The reason underlies the enhanced absorption of
heavily doped n-type GaAs at energies below 1.36 eV. (C) 1998 Elsevier Sci
ence S.A. All rights reserved.