fig3

Figure 3. (A) Band alignment diagram of n-ZnO/p-CuI heterojunction diode with and without ZnS interface layer^[62]. Copyright 2020 Elsevier B.V.; (B) Current-voltage (I-V) curves and ideal factor of the n-IGZO/p-CuI heterojunction diode under heat treatment at 100, 120, and 150 °C, labeled as B, C, and D, respectively (as-prepared sample is labeled A)^[64]. Copyright 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim; (C) I-V curve of n-IGZO/p-CuI_1-xBr_x heterojunction diode according to the x^[57]. Copyright 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim; (D) Schematic illustration of the fabrication method of n-AgI/p-CuI heterojunction diode^[61]. Copyright 2017, American Chemical Society. CuI: Copper iodide.