Specific Features of Photoluminescence and Nanosecond Relaxation of Photocurrent in CuIn5S8 Crystals upon Strong Optical Excitation

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Guseinov A., Salmanov V., Məmmədov R., Magomedov A., Bairamova A.

Optics and Spectroscopy, vol.128, no.12, pp.1978-1982, 2020 (SCI-Expanded, Scopus)

• Nəşrin Növü: Article / Article
• Cild: 128 Say: 12
• Nəşr tarixi: 2020
• Doi nömrəsi: 10.1134/s0030400x20120905
• jurnalın adı: Optics and Spectroscopy
• Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Compendex, INSPEC
• Səhifə sayı: pp.1978-1982
• Açar sözlər: CuIn5S8, photoconductivity, photocurrent, photoluminescence
• Adres: Bəli

Qısa məlumat

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.