ICT2014 Abstracts

Filled skutterudites have great attractions for thermoelectric power generation because their thermoelectric performance can be improved by reducing the thermal conductivity due to phonon scattering with void fillers and by controlling the carrier concentration due to substitutions of transition element. Various fillers such as rare-earth, alkali-earth elements have been used to enhance the thermoelectric properties. In this study, p-type Ce_1-zYb_zFe_3.5Ni_0.5Sb₁₂ skutterudites were prepared by encapsulated melting and hot pressing, and the double-filling effects on the transport and the thermoelectric properties were examined.