Incomplete oxidation in back channel of GaInZnO thin-film transistor grown by rf sputtering O. Seo, J. Chung and J. Jo Eur. Phys. J. Appl. Phys., 54 1 (2011) 10302 Published online: 13 April 2011 DOI: 10.1051/epjap/2011100406