Abstract
Amorphous Ag10Te90 thin films were prepared onto glass substrates using the thermal evaporation method. The effect of γ-irradiation on the optical parameters was investigated in the dose range 10–180krad. The optical absorption coefficient (α) for the as-deposited and irradiated films has been determined from the reflectance (R) and transmittance (T) measurements in the wavelength range 400–900nm. Analysis of the spectral behavior of the absorption coefficient in the absorption region revealed direct transitions. The optical studies showed the decrease in band gap (Eopt) with an increase in γ-irradiation . The width of the tails of localized states (Ee) were calculated and found to be increasing after γ-irradiation. Dielectric related optical constants, such as (n, kex., ε1 and ε2), were presented. Finally, the effect of γ-irradiation on the high-frequency dielectric constant (εL) and carrier concentration (N/m*) is also studied. The results were discussed by the change on the degree of disorder as well as the radiation-induced effect on solids.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
