Vibrational Analysis of Zone Centre Phonons in Sulfospinels AgIn₅S₈ and CuIn₅S₈

Photocatalytic H2 evolution under visible light irradiation on AgIn5S8 photocatalyst

“…Thus, in AgIn 5 S 8 crystal, 1/5 of indium atoms have tetrahedral (t) coordination and 4/5 of indium atoms octahedral (o) coordination [16,17]. Optical absorption, photoconductivity, IR reflection, Raman scattering, and photoluminescence of AgIn 5 S 8 have been studied by many researchers [18][19][20]. However, up to now, the photocatalytic property of this semiconductor has not been reported.…”

Donor-acceptor pair recombination in AgIn5S8 single crystals

“…Infrared ͑IR͒ reflection and Raman scattering spectra of AgIn 5 S 8 have also been investigated and analyzed. [4][5][6] In this article, we present the results of a systematic experimental analysis of the photoluminescence ͑PL͒ of AgIn 5 S 8 single crystals in the 1.44-1.91 eV energy region and in the 10-170 K temperature range. The PL spectra and their temperature and excitation intensity dependencies were studied in detail in order to propose a model for the recombination process of photoexcited carriers and a scheme for the impurity levels.…”

Structural, electronic and optoelectronic properties of AB 5 C 8 ( A = Cu/Ag; B = In and C = S, Se and Te ) compounds

“…Due to strong absorption above the band gap, ternary semi‐ conductors attracted considerable attention in device technology and are used in quantum electronic devices and solar cells 5,6 . Presence of three different elements changes their measurable properties 7 . Here, in this study, the ternary semiconductors are the combination of group I, III and VI elements which may be in stoichiometric as well as in non‐stoichiometric proportions 8 .…”