Optical Properties of CdO Thin Films deposited by Chemical Bath Method

There is an ever growing interest in the synthesis of low-cost, non-vacuum transparent conducting oxides (TCOs) with n-type conductivity. In search o f such suitable TCOs, it is found that chemical and physical conditions can be conveniently incorporated in the CdO thin films to obtain higher transmission and conductivity. In this work, CdO films have been pre pared, using simple Chemical Bath Deposition techni que for the molarities 0.05 and 0.1.The prepared films were annealed at a temperature of 100 C for one hour. Transmission spectra of the films were taken using UV-VIS Double Beam Spectrophotometer in the wavelength range 400-1100 nm. Optical constants suc h as, band gap, refractive index, extinction coeffi cient, dielectric constant and Urbach energy were also stu died.