Research on Optical Properties of Ag/ZnO Nanostructures

Abstract

Ag nanowires and ZnO quantum dots were fabricated by chemical methods. The surface morphologies, structures and optical properties were investigated. It is found that both Ag nanowires and ZnO quantum dots exhibit single crystal structure with average diameters of 130 nm and 5 nm, respectively. The significantly enhanced UV fluorescence was observed from ZnO quantum dots after mixed with Ag nanowires at a certain ratio. The enhancement emission positions are consistent with the localized surface plasmon resoant modes in Ag nanowires. This study may provide a new way and a reference to design ZnO based nano light-emitting devices.