Fig. 4: Current–voltage characteristics of In2O3/ZnO heterojunction TFTs.

Representative transfer characteristics of the TFTs with a Hyb_0, b Hyb_1, and c Hyb_2 as gate dielectrics, measured at VD = 10 V. Output characteristics of the TFTs with d Hyb_0, e Hyb_1, and f Hyb_2 as gate dielectrics. The gate voltage was increasingly varied between 0 and 10 V in steps of 2.5 V.