The enhancement of a self-powered UV photodetector based on vertically aligned Ag-modified ZnO nanowires†
Abstract
A self-powered photoelectrochemical cell-type UV detector has been fabricated using Ag nanoparticle-modified ZnO NWs as an active photoanode and H2O as the electrolyte. The fabricated device shows a high responsivity (0.37 A W−1). The enhancement is attributed to the modification of the structure which enables more effective separation and directional transfer.