Interplay of native point defects with ZnO Schottky barriers and doping - Brillson, L.J; Dong, Yufeng; Tuomisto, F.; Svensson, B.G; Kuznetsov, A.Yu; Doutt, D.; Mosbacker, H.L; Cantwell, G.; Zhang, Jizhi; Song, J.J; Fang, Z.-Q; Look, D.C (2012)