Annealing effect on the optical properties of (ZnO)‎ x (CdO)‎ 1-x films obtained by spray pyrolysis

Abstract EN

The effect of the annealing on the optical transmission, absorption coefficient, dielectric constants (εr),( εi) ,Skin depth and the optical energy gap of (ZnO) x (CdO)1- x thin films with (x = 0.05) deposited on preheated glass substrates at a temperature of (450 ° C) by chemical pyrolysis technique were performed.

These films show direct allowed inter band transition that influenced by annealing at (450 ° C) for two hours.

And it also found that the optical energy gap has been increased from about (2.50 eV) before annealing to about (2.65 eV) after annealing, from the analysis of the absorption and transmission sp ectra in the wavelength range (380-900nm).

The results show that all these parameters were affected by annealing.