Rectifying characteristics and solar-blind photoresponse in β-Ga2O3/ZnO heterojunctions
Ma Xiao-Fei, Huang Yuan-Qi, Zhi Yu-Song, Wang Xia, Li Pei-Gang, Wu Zhen-Ping †, Tang Wei-Hua ‡
       

Schematic energy band diagrams of β-Ga2O3/ZnO heterojunction. (0) Before contact. After contact under dark conditions at (a) 0 V bias, (b) reverse bias, and (c) positive bias; under 254-nm illumination at (d) 0 V bias, (e) reverse bias, and (f) positive bias.