Preparation and characterization of undoped zinc oxide and uranium doped zinc oxide thin films

Doped and undoped zinc oxide thin films were deposited by metallorganic chemical vapour deposition technique, which has been reported previously. The undoped zinc oxide thin films were deposited from the pyrolysis of zinc acetate while those of uranium-doped zinc oxide were deposited from uranyl zinc acetate. The scanning electron microscope micrograph shows that the ZnO thin film has polycrystalline structure. The band gaps of the undoped ZnO and uranium doped ZnO thin films were determined using optical technique and found to be 3.24 and 3.16 eV respectively.