EFFECT OF CdO CONTENT ON THE OPTICAL PROPERTIES OF TiO2 THIN FILMS

Thin films of pure and doped TiO2 were examined for their optical properties with varying concentrations of CdO (10 and 20 %wt).Using the Spin-Coating technique, Thin films were efficiently prepared on glass substrates with varying concentrations of CdO.Use UV-VIS transmittance spectroscopy to look at the optical characteristics.Transmittance of the TiO2 film in the visible field reaches 79%, according to the optical parameters associated with the absorption and transmission spectra of the produced thin films.The computed optical band gaps for (TiO2, CdO, 10% CdO, 20% CdO) were ( 3.82, 3.7, 3.87, and 3.86 ) eV, respectively.At 350 nm, all of the following values were found: optical energy gap, real and imaginary dielectric constants, extinction coefficient, refractive index, absorption coefficient, reflection, and weight percent accordingly.