Effects of Various Concentation Molarities on the Optical and Dispersion Parameters of Nanostructured Cobalt Oxide Layers by SP Process
Keywords:
Cobalt oxide; Thin films; spray pyrolysis; Optical properties, dispersion parametersAbstract
Nanostructured Cobalt oxide (Co3O4) layers were made by using spray pyrolysis (SP) technique, the aqueous solution of hydrated cobalt chloride salt (CoCl2·6H2O) were used as source of cobalt. The films were deposited onto the glass substrates kept at 400oC. The impacts of molar concentration varied from (C= 0.2 to 0.3 mol/l ) of the starting solution on the optical and dispersion parameters of cobalt oxide layers were studied. It was found from the optical transmission that the maximum transmittance was observed for the sample prepared at molar concentration of 0.3mol/l. In addition, the refractive index and extinction coefficient, were calculated.
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