Abstract
The Ag-mixed Se70Te30 thermally deposited semiconducting thin films show interesting thermoelectric properties. As the Ag content in the structure of Se70Te30 increases, the Seebeck coefficient increases. The semiconductive thin films reveal a p-type behavior. The dark conductivity increases at 300 K, whereas a reduction in corresponding activation energy for dark, photo and thermal response is observed with the increase in the Ag content. It is elucidated that the power factor for (Se70Te30)(100)Ag--x(x)(0.0 <= x <= 8.0 at.%) semiconducting thin films can be tuned and enhanced at varied temperature ranges through adjusting the addition amount of Ag. These results indicate that these semi-conducting thin films have remarkable potential as thermoelectric generators.