Ni doped ZnO, CdSe and CdSe/ZnO photoactive material development

Nanostructured ZnO films have been deposited in aqueous solution on indium tin oxide coated glass (ITO) substrate via electrochemical route. The effect of zinc nitrate concentrations on the formation of ZnO nanostructures have been investigated in detail by FESEM technique. The influence of the supporting electrolyte on the morphology of ZnO films was also examined. Morphological, crystallographic and optical properties of rod and tower like ZnO films was studied by using FESEM, XRD, XANES and UV-visible spectrophotometer techniques. Nickel doped ZnO nanostructures were synthesized by electrochemical deposition method. The efficacy of Nickel doping on morphological, crystallographic and optical properties of ZnO thin films was examined. CdSe nanofilms were deposited on ITO by electrochemical technique. The effect of deposition time on the morphology, composition, crystal orientation and optic property of CdSe films was investigated. Moreover, ZnO nanostructures were deposited on ITO/CdSe electrode via electrochemical route. The properties of prepared mono and bilayer nanostructures were investigated by FESEM, XRD and UV-visible spectrophotometer methods. Electronic properties like charge carrier density and flat band potential of electrochemically deposited photo active electrodes have been determined by using Mott-Schottky equation.