Enhanced power factor in the promising thermoelectric material SnPb x Te prepared via zone-melting

Tin telluride (SnTe) has recently attracted much attention as a promising thermoelectric material. By alloying with Pb using a zone-melting method, the maximum power factor of SnTe alloys reaches 30.5 μW cm −1 K −2 , and a ZT of 0.81 has been obtained.