Effect Gamma Radiation of CdTe Thin Films Deposited by Thermal Evaporation

Abstract

The effect of 0.66 μeV gamma radiation on the structural and optical properties of theCdTe thin films prepared by thermal evaporation at thickness 350nm, The samples wereirradiated with time (50 h and 79h) at room temperature. The absorption spectra for all thesamples were recorded using UV-VIS spectrometer in order to calculate the energy gap,refractive index and others parameter . The optical energy gap was found decrease from (1.9to 1.67) eV.