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- Title
Specific Features of Photoluminescence and Nanosecond Relaxation of Photocurrent in CuIn5S8 Crystals upon Strong Optical Excitation.
- Authors
Guseinov, A. G.; Salmanov, V. M.; Mamedov, R. M.; Magomedov, A. Z.; Bairamova, A. I.
- Abstract
Intense luminescence and nanosecond relaxation of photocurrent upon strong optical excitation have been observed in CuIn5S8 crystals grown by slow melt cooling at a constant temperature gradient. Three emission bands with energies of 1.52, 1.48, and 1.465 eV are distinguished in the photoluminescence spectra. The crystal photoactivation in the range of 300–600 K is explained by an increase in the hole mobility in the valence band with an increase in temperature.
- Subjects
PHOTOLUMINESCENCE; HOLE mobility; CRYSTALS; VALENCE bands; ENERGY bands; LUMINESCENCE
- Publication
Optics & Spectroscopy, 2020, Vol 128, Issue 12, p1978
- ISSN
0030-400X
- Publication type
Article
- DOI
10.1134/S0030400X20120905