دراسة تاثير التشويب بالكوبلت (Co) على الثوابت البصرية لاغشية (SnO2)

Thin film of (SnO2) and Co- doped Tin Oxide film with doping percentage of (1,3,5,7)% have been prepared by chemical spray pyrolysis on glass substrates . The absorbance and transmittance spectra have been recorded in the wavelength range (350-900) nm in order to calculate the optical constants such as: Reflectance (R), refractive index (n◦), extinction coefficient (K◦), real and imaginary parts of dielectric constant and Optical conductivity (σ).