Toward Enhancing the Thermoelectric Properties of BiTe and SbTe Alloys by Co-Evaporation of BiTe:Bi and SbTe:Te.

In this work, we developed nanostructured BiTe and SbTe thin films by thermal co-evaporation of their alloys with corresponding pure elements (Bi, Sb, and Te). The films were fabricated on borosilicate glass at different substrate temperatures and deposition rates. At 300 °C, enhanced thermoelectric performance was demonstrated for -type BiTe:Bi and -type SbTe:Te, with Seebeck coefficients of 195 µV K and 178 μV K, along with electrical conductivities of 4.