Thermoelectric Properties of Ni-doped CoSb_3 Prepared by Encapsulated Induction Melting and Hot Pressing

摘要

Ni-doped CoSb_3 was prepared by the encapsulated induction melting and hot pressing, and its doping effects on the thermoelectric properties were investigated. Single phase δ-CoSb_3 was successfully obtained by the subsequent heat treatment at 773K for 24 hours. Nickel atoms acted as electron donors by substituting cobalt atoms. Thermoelectric properties were remarkably improved by the appropriate doping.