A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
The optical properties of amorphous Ge x As x Se 2-x (x = 0.050.30) thin films prepared by thermal evaporation on glass substrates held at T substr = 100 o C are reported. The transmission spectra was used for the calculation of the absorption coefficient , optical band gap E g , and the values of the refractive index n. The dependences of , E g , and n on the film composition in the Ge x As x Se 1-2x glassy system were determined. It was established that the optical band gap E g decreases,fatcat:hxrdudu36jbx7kaje2rf7xlhuu