Abstract
Fe-doped CoSb3 skutterudites were prepared by hot pressing, and their thermoelectric and electronic transport properties were examined. The positive signs of the Seebeck and Hall coefficients for all Fe-doped specimens showed that Fe atoms acted as p-type dopants by substituting for Co atoms. The carrier concentration increased with increasing Fe doping content, and the Fe generated excess holes. The Seebeck coefficient showed a positive value at all temperatures examined, and increased with increasing temperature. The temperature dependence of electrical resistivity suggests that Co1−xFexSb3 is a highly degenerate semiconducting material. Fe doping reduced the thermal conductivity considerably, and the lattice contribution was dominant in Fe-doped CoSb3 skutterudites.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
