LEÓN, M.; LEVCENKO, S.; SYRBU, N. N.; NATEPROV, A.; TEZLEVAN, V.; MERINO, J. M.; ARUSHANOV, E.
(WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 2006)
Optical absorption spectra of CuIn5Se8 and CuGa3Se5 single crystals have been investigated. The energy gap E g for CuIn5Se8 (CuGa3Se5) was found to be varied from 1.27 (1.79) to 1.21 (1.71) eV in the temperature range ...