naa a22 4500 510801803 CHVBK 20180411083358.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-012-2253-9 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2253-9 Preparation and Thermoelectric Properties of p -Type Yb-Filled Skutterudites [Elektronische Daten] [Kwan-Ho Park, Il-Ho Kim, Soon-Mok Choi, Won-Seon Seo, Dong-Ik Cheong, Hyung Kang] p-Type Yb z Fe4−x Co x Sb12 skutterudites were prepared by encapsulated melting and hot pressing, and the filling and doping (charge compensation) effects on the transport and thermoelectric properties were examined. The electrical conductivity of all specimens decreased slightly with increasing temperature, indicating that they were in a degenerate state due to high carrier concentrations of 1020cm−3 to 1021cm−3. The Hall and Seebeck coefficients exhibited positive signs, indicating that the majority carriers are holes (p-type). The Seebeck coefficient increased with increasing temperature to maximum values of 100μV/K to 150μV/K at 823K. The electrical and thermal conductivities were reduced by substitution of Co for Fe, which was responsible for the decreased carrier concentration. Overall, the Yb-filled Fe-rich skutterudites showed better thermoelectric performance than the Yb-filled Co-rich skutterudites. TMS, 2012 Thermoelectric nationallicence skutterudite nationallicence ytterbium filling nationallicence charge compensation nationallicence Park Kwan-Ho Department of Materials Science and Engineering, Korea National University of Transportation, 380-702, Chungbuk, Korea aut Kim Il-Ho Department of Materials Science and Engineering, Korea National University of Transportation, 380-702, Chungbuk, Korea aut Choi Soon-Mok Green Ceramics Division, Korea Institute of Ceramic Engineering and Technology, 153-801, Seoul, Korea aut Seo Won-Seon Green Ceramics Division, Korea Institute of Ceramic Engineering and Technology, 153-801, Seoul, Korea aut Cheong Dong-Ik Defense Advanced Research and Development Center, Agency for Defense Development, 305-600, Daejeon, Korea aut Kang Hyung The 4th R&D Institute-4, Agency for Defense Development, 305-600, Daejeon, Korea aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1377-1381 0361-5235 42:7<1377 2013 42 11664 https://doi.org/10.1007/s11664-012-2253-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2253-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Kwan-Ho Department of Materials Science and Engineering, Korea National University of Transportation, 380-702, Chungbuk, Korea aut NATIONALLICENCE 700 1- Kim Il-Ho Department of Materials Science and Engineering, Korea National University of Transportation, 380-702, Chungbuk, Korea aut NATIONALLICENCE 700 1- Choi Soon-Mok Green Ceramics Division, Korea Institute of Ceramic Engineering and Technology, 153-801, Seoul, Korea aut NATIONALLICENCE 700 1- Seo Won-Seon Green Ceramics Division, Korea Institute of Ceramic Engineering and Technology, 153-801, Seoul, Korea aut NATIONALLICENCE 700 1- Cheong Dong-Ik Defense Advanced Research and Development Center, Agency for Defense Development, 305-600, Daejeon, Korea aut NATIONALLICENCE 700 1- Kang Hyung The 4th R&D Institute-4, Agency for Defense Development, 305-600, Daejeon, Korea aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1377-1381 0361-5235 42:7<1377 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer