Undoped CuO deposited by Spray Pyrolysis technique

In this study undoped copper oxide cuo thin films were deposited on heated glass substrate by using a simple and low cost spray pyrolysis technique. an aqueous solution with different molar concentrations of copper (ii) chloride dehydrates (cucl2,2h2o) as precursor was used. the as-deposited thin films were carried out at fixed substrate temperature of 350°c. the structural,textural and optical properties of the films were determined respectively by x-ray diffraction method,atomic force microscopy and uv-visible spectrophotometer. the x-ray diffraction spectra showed that all samples exhibit polycrystalline nature corresponding to monoclinic crystal structure with two preferred orientations along the (-111) and (111) axis. polycrystalline morphology with a pyramidal crystallite size depending on the molar concentration of copper (ii) chloride dehydrate (cucl2,2h2o) in starting solution,was observed. roughness parameters ra and rms of the surface and the grain size were investigated as a function of molar concentration. transmission values varying from 60 to70% at different molar concentrations were obtained in the wavelength range between 400 and 1200nm.