Self-powered visible-blind UV photodetectors based on p-NiO nanoflakes/n-ZnO nanorod arrays with an MgO interfacial layer

Abstract

ZnO NRs and NiO nanoflakes were prepared by chemical bath deposition and the self-powered UV PDs based on NiO/ZnO NRs heterojunctions were fabricated. The suitable MgO insertion layer can effectively improve the performance of UV PDs.