|
Spectroscopy of condensed matter
Specific features of photoluminescence and nanosecond relaxation of photocurrent in CuIn$_{5}$S$_{8}$ crystals upon strong optical excitation
A. H. Huseynova, V. M. Salmanova, R. M. Mamedova, A. Z. Magomedova, A. I. Bairamovab a Baku State University
b Azerbaidzhan University of Construction and Architecture
Abstract:
Intense luminescence and nanosecond relaxation of photocurrent upon strong optical excitation have been observed in CuIn$_{5}$S$_{8}$ 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.
Keywords:
CuInS, photocurrent, photoluminescence, photoconductivity.
Received: 24.07.2020 Revised: 16.08.2020 Accepted: 25.08.2020
Citation:
A. H. Huseynov, V. M. Salmanov, R. M. Mamedov, A. Z. Magomedov, A. I. Bairamova, “Specific features of photoluminescence and nanosecond relaxation of photocurrent in CuIn$_{5}$S$_{8}$ crystals upon strong optical excitation”, Optics and Spectroscopy, 128:12 (2020), 1849–1853; Optics and Spectroscopy, 128:12 (2020), 1978–1982
Linking options:
https://www.mathnet.ru/eng/os224 https://www.mathnet.ru/eng/os/v128/i12/p1849
|
Statistics & downloads: |
Abstract page: | 40 | Full-text PDF : | 6 |
|