GROWTH OF CdO AND ZnCdO-BASED NOVEL NANOSTRUCTURES USING ELECTROCHEMICAL DEPOSITION

CdO and ZnCdO alloy semiconductor nanostructures were obtained by means of cathodic deposition. Crystalline nanostructures of CdO and cadmium doped ZnO with cadmium concentration ranging from about 25% to 75% were electrodeposited onto the tin doped indium oxide (ITO) conducting glass substrates and subsequently annealed in air at 300 degrees C and 600 degrees C, respectively. X-ray diffraction showed that the nanostructures were of cubic crystallographic structure for CdO and at low doping concentration it showed wurtzite structure. Energy dispersive X-ray spectroscopy (EDS) results demonstrated that Cd, Zn and O elements existed in the deposited nanostructures. The incorporation of Cd content in the ZnO resulted in the band gap tuning of about 0.94 eV.