Investigation of the effect of film thickness on the optical properties of amorphous Se85-xte15sbx thin films
View/ Open
Publication Date
2014Author
Austine A. Mulama, Julius M. Mwabor, Andrew O. Oduor Cosmas M. Muiva and Boniface Muthoka
Metadata
Show full item recordAbstract/ Overview
Amorphous thin films of Se85-xTe15Sbx (x = 0.0, 0.5, 2.5, and 5.0 at. %) deposited by flash evaporation technique,
have been investigated in the wavelength range of 500nm-3000nm. It is found that the effect of increasing antimony
content and film thickness on the as-deposited films led to increase in the absorption coefficient. The optical band
gap energy decreased with increase in antimony concentration but increased with increase in film thickness.