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 ‡
       

(a) I–V characteristic curves of the β-Ga2O3/ZnO heterojunction in the dark, under 254-nm and 365-nm illuminations, with inset showing I–V curve of heterojunction in the dark in log scale; (b) I–V characteristic curve of the In–ZnO–In structure; (c) I–V characteristic curve of In–β-Ga2O3–In structure.