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Thin films of tin doped zinc oxide (ZnO: Sn) with thickness 300 ± 30 nm prepared by spray pyrolysis method at substrate temperatures of 400°C. The structure, surface morphological and optical properties were studied, for Two weight ratios of doping (2 and 4) wt %. The results of X-Ray measurements showed that all deposit samples have a polycrystalline pattern with hexagonal wurtzite type structure. The films crystallites were oriented along (002) plane. The morphology measurements obtained by scanning electron microscope (SEM) showed that there is a change in the surface texture by the increasing of tin weight ratios with the rate of porosity of the surface when treating with 4wt %. The measurement of Atomic force microscopy (AFM) revealed nano particles sized and the roughness of the surface decrease to increase deflection, while optical measurements showed a decrease The energy gap of the models that are expected in the undoped samples.

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Thin films of transparent and conductive CdO and B1,3)w% doped cadmium oxide (CdO: B) (1 and 3) wt %, have been deposited using chemical spray pyrolysis (CSP)) technique on glass substrate temperature of 300°C. Microstructural analysis indicates that X-ray diffraction study shows that the obtained films were polycrystalline. The preferred orientation was along the direction (200) and that the average crystallite size increases with the increasing B content. Morphological properties were studied, by scanning electron microscope (SEM) and atomic force microscopy (AFM) which reveals that the grains have a similar column shape. UV-visible transmission spectroscopy reveal that the prepared thin films are transparent in the visible range, The value of the optical band gap obtained shows a slight increase in its values from 2.43 eV to 2.45 eV as B concentration increasing.