EFFECT ON OPTICAL AND LUMINESCENCE PROPERTIES OF PVA ASSISTED CD DOPED ZNO THIN FILMS

Abstract

Pure and Cd doped ZnO thin films were prepared by solgel method and coated on glass substrate using spin coating method. Structural studies were carried out by XRD and FTIR techniques. The elemental composition to confirm the doping of transition metals is studied by EDX analysis. The optical effects such as absorptions, transmittance and excitation of luminescence have been studied by UV-Vis DR Spectroscopy and PL spectroscopy. Further the bandgap investigations of thin films have been studied using the transmittance analysis. The doped thin film has the Moss-Burstein shift and show blue shift with high bandgap.