Study the effect of the type and nature of the substrate on the optical properties of the thin films of (NiO) prepared by spin coating method

Abstract

Pure nickel oxide (NiO) thin films has been prepared by spin coating method on the substrates of glass and quartz at room temperature and the heat of drying (180ﹾC) for (15) minutes at a rate of 4 sprays each substrate . Has been studied the optical properties of the thin films prepared by recording spectral transmittance and absorbance and the extent of wavelengths (300-900 nm), has found that the transmittance and the optical energy gap for direct transmission allowed less than increasing the number of sprays. While each of the absorbance and the absorption coefficient of increasing the number of sprays and increase both substrates (glass, quartz).