Optical absorption of Zn(V,Al)O thin films studied by spectroscopic ellipsometry from 1 to 6 eV Amor Sayari, Lassaad El Mir, Saleh Al-Heniti, Talal Al-Harbi, Saud Jamil Yaghmour and Ahmad Abdullah Al-Ghamdi Eur. Phys. J. Appl. Phys., 62 3 (2013) 30304 Published online: 13 June 2013 DOI: 10.1051/epjap/2013120502