Synthesis and fast-response of a photodetector of hydrothermally grown ZnO nanorods through the use of a graphene oxide/ZnO seed layer

Abstract

We used a hydrothermal method combined with a graphene oxide (GO)/ZnO seed layer to fabricate a ZnO nanorod based fast-response UV detector. The introduction of GO film decreases the excitonic photoluminescence intensity, which indicates the transfer of electrons from ZnO nanorods to the surface of the GO film (quenching).