دراسة تاثير التلدين على الخواص التركيبية و البصرية لاغشية AgInS2 المحضرة بطريقة التحليل الكيميائي الحراري

Thin films of SnO2:1%Co have been prepared by chemical spray pyrolysis technique, These film were annealed at (550,600)oC . Transmission and absorbance spectra have been recorded before and after annealing in the wavelength range (400-900) nm in order to calculate the optical constants Such as : Reflectance, refractive index ,extinction coefficient ,real and imaginary parts of the dielectric constant and optical conductivity .