The Effect of Composition Ratios on Structural and Optical Properties of (ZnO)1-x (CdO)x Thin Films Prepared by PLD. [ ]


In this work (ZnO)1-x (CdO)x films were prepared by using Pulse laser deposition. Annealing in air at temperature 500 °C at constant time of 180 min. The crystalline structure was studied by X-ray diffraction (XRD) having found the presence of the ZnO hexagonal at X=0 and cubic phase pattern for CdO at x=1 and a mixing of cubic-CdO and hexagonal-ZnO phases for (X= 0.3, 0.4 and 0.5) concentrations. The crystallinity of all samples improves with the thermal annealing. 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 ZnO.