Abstract
In this work, CdO - doped TiO2 thin films with different concentrations (0.0%,0.1%, 0.3%, 0.5% and 1%) have been prepared by pulse laser deposition method on glass substrates and annealed in air at 500o K. The effects of CdO-doping on the optical properties of the TiO2 thin films were studied by UV-visible spectroscopy.The prepared films were characterized by X-ray diffraction. The XRD pattern of the films show a polycrystalline film, with tetragonal structure for TiO2 and formation of Anatase phase and many peaks(101), (004) and (200) were appear when increasing of CdO concentration a new peak is appearedfor CdO , for concentration of (0.1 %,0.3%, 0.5% and 1%) of CdO for intensities of (111) ,(200), (220) and (311) with cubic structure. The optical band-gap was also studied from the optical transmittance for the as grown and annealed samples. As expected, the band-gap changes between that for pure CdO and that for TiO2. Keywords - Optical properties; CdO thin films; PLD, XRD analysis, doped thin films
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