Abstract
CdS films were prepared with different sputtering power by radio frequency magnetron sputtering from CdS slices target. The structural and physical properties of CdS films were studied using X-ray diffraction (XRD), atomic force microscopy (AFM), ultraviolet spectrophotometer and Hall effect measurements. The results of structural analysis showed that CdS films are polycrystalline with a cubic structure having (1 1 1) plane and a hexagonal structure having (0 0 2) plane. AFM micrographs show that the grain size increases with the sputtering power increasing. The optical transmission data indicate that all CdS films have high optical transmittance. In Hall Effect measurements, the electrical resistivity of the deposited films are 3.2x103Ω·cm, 1.5x104Ω and 2.2x104Ω·cm, respectively.
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