A novel two step electrochemical deposition method for the synthesis of ZnO/Cu 2 O heterojunctions is reported. ZnO nanorods were grown on seeded oxidized silicon substrates and were subsequently employed as working electrodes for the electrodeposition of Cu 2 O in the same aqueous formamide solution using Zn and Cu foils as counter-electrodes respectively. Single crystalline Cu 2 O particles grow on top of the single crystalline and vertical to the substrate ZnO nanorods. Varying the growth parameters different Cu 2 O morphologies can be obtained, ranging from isolated cube and truncated cube particles to a continuous layer.
Sakellis, I., Giamini, S., Moschos, I., Chandrinou, C., Travlos, A., Kim, C. Y., … Boukos, N. (2014). A novel method for the growth of Cu 2 O/ZnO heterojunctions. In Energy Procedia (Vol. 60, pp. 37–42). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2014.12.339