Browsing Articulos, Pre-prints (Facultad de Ciencias) by Author "Wasím, Syed M."
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Urbach’s tail in the absorption spectra of Cu2GeSe3 semiconducting compound
Rincón, C.; Marcano García, Gustavo José; Wasím, Syed M.; Marín, G.; Villarreal, Manuel; Sánchez Pérez, Gerardo (SaberULA, 2019-05-29)In the present work we report on the analysis of the Urbach’s tail in pure and Mn-doped Cu2GeSe3 samples having small deviation from its ideal stoichiometry. It is found that the high values of the phonon energy h?p ...