Enhanced Thermoelectric Properties of p-Type BiSbTe-CuGeSe Composite Materials.

Bismuth-telluride-based thermoelectric materials have been applied in active room-temperature cooling, but the mediocre value of ∼1.0 limits the thermoelectric (TE) device's conversion efficiency and determines its application. In this work, we show the obviously improved thermoelectric properties of p-type BiSbTe by the CuGeSe composite.