The Effect of Gamma-ray (Low Energy Cs-0.660 MeV) Irradiation on the Energy Gap of CdSe Thin Films Prepared at Different Temperatures

In this study, CdSe thin films were prepared by the Spray pyrolysis method at different substrate temperatures and then subjected to gamma rays from a (Cs-source) with an energy of about 0.66MeV for two hours. The impact of gamma rays on the energy gap values was examined at the temperatures mentioned above. There was a significant increase in the energy gap value by about (0.1 to 0.15)eV.