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- Title
Thermoelectric Properties of p-Type Tl-Filled Skutterudites: TlFeCoSb.
- Authors
Choi, Seongho; Kurosaki, Ken; Yusufu, Aikebaier; Ohishi, Yuji; Muta, Hiroaki; Yamanaka, Shinsuke
- Abstract
Polycrystalline samples of Tl-filled p-type skutterudites TlFeCoSb ( x = 0, 0.2, 0.4, 0.5, 0.6, and 0.7) were prepared and their high-temperature thermoelectric properties were examined from room temperature to 773 K. The samples with x = 0.5 and 0.6 approximated to the skutterudite single phase, although all samples contained some secondary phases. On the other hand, all samples showed a positive Seebeck coefficient, and the Tl-filled samples exhibited definitely low thermal conductivity in comparison with the non-filled one. The sample with x = 0.4 yielded the highest dimensionless figure of merit of 0.30 at 724 K.
- Subjects
POLYCRYSTALLINE semiconductors; THERMOELECTRICITY; SKUTTERUDITE; NICKEL ores; THERMAL conductivity
- Publication
Journal of Electronic Materials, 2015, Vol 44, Issue 6, p1743
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-014-3539-x