فهرست نشریات علمی دسترسی آزاد ایران

Thin films of pure manganese oxide doped with nickel oxide in ratios ( 0, 1 , 3 , 5 , 7 ) % were successfully prepared by chemical spray pyrolysis method. The films were deposited on glass slides at a temperature of 350 °C. The thin films were tested by using X-ray diffraction ( XRD). According to the findings, the produced films possessed a polycrystalline quaternary structure . and all the films Visual tests were also carried out using (UV–Visible). We notice that the transmittance of the prepared films increases with increasing doping rates, and its best value is at 3%, but the absorbance will decrease because the behavior of absorbance is opposite to transmittance. The absorption coefficient, refractive index , and energy gap will increase with the increase in photon energy, as we notice that the energy gap values range between (2.65 – 2.95 ) eV.The extinction coefficient will decrease with increasing photon energy . A study was topographic on the surface of thin films using ( AFM ) and we notice that the roughness values of the thin films will decrease and the root mean square will also decrease.