Spectroscopic ellipsometry, optical, structural and electrical investigation of sprayed pure and Sn-doped ZnO thin filmsH. Mokhtari, M. Benhaliliba, M.S. Aida, N. Attaf and Y. OcakEPJ Web of Conferences, 44 (2013) 03006DOI: https://doi.org/10.1051/epjconf/20134403006