Low temperature photoluminescence spectra of InS single crystals
Date
1997-03
Authors
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Source Title
Solid State Communications
Print ISSN
0038-1098
Electronic ISSN
Publisher
Elsevier
Volume
101
Issue
11
Pages
797 - 799
Language
English
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Journal Title
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Abstract
Photoluminescence (PL) spectra of InS were investigated in the wavelength region 477.5–860 nm and in the temperature range 8.5–293 K. We observed three PL bands centered at 605 nm (A-band), 626 nm (B-band) and 820 nm (C-band). The A- and B-bands are due to radiative transitions from the donor level at 0.01 eV below the bottom of the conduction band to the valence band and from the donor level at 0.06 eV below the bottom of the conduction band to the acceptor level 0.12 eV above the top of the valence band, respectively. The proposed energy-level scheme allows us to interpret the recombination processes in InS single crystals. Copyright © 1997 Published by Elsevier Ltd.