Photosensitivity and structural properties of vanadium-doped ZnO and ZnO nanoparticle at various calcined temperature

Abstract

The aim of the research to elucidate the photosensitivity of a synthesized nanomaterial, i.e. ZnO NPs and 10% vanadium-doped ZnO NPs with their characterization. The material were characterized by X-Ray diffractometer (XRD), Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Photoluminescence (PL). XRD confirms the formation of ZnO and V-ZnO NPs from its peaks and confirmed the doping of a vanadium element with ZnO NPs by JCPDS with different calcination temperature (450 °C, 550 °C and 660 °C). By increasing a temperature its peak or crystallinity is also increases and confined its atom in a peak. FTIR confirms the formation of ZnO and V-doped ZnO NPs by their specific spectral peaks. SEM images shows that the ZnO NPs is spherical in shape with an average particle size of 50 nm and V-ZnO NPs is polyhedral or hexagonal with an average particle size of 74 nm confirms its morphology. The property of photoconductivity has been measured by photoluminescence via UV–vis illumination. Sample with high calcination show good result due to increase in Znidefect but with vanadium-doped ZnO NPs shows the higher and more interesting result than the ZnO NPs.