Optical and electrical properties of Sn-Sb-Se chalcogenide thin filmsM. M. Wakkad, E. Kh. Shokr, H. A. Abd El Ghani and M. A. AwadEur. Phys. J. Appl. Phys., 43 1 (2008) 23-30DOI: https://doi.org/10.1051/epjap:2008094