Charge-Compensated n-Type Skutterudites


Uher C., Li C., Ballikaya S.

JOURNAL OF ELECTRONIC MATERIALS, cilt.39, ss.2122-2126, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 39 Konu: 9
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s11664-009-0990-1
  • Dergi Adı: JOURNAL OF ELECTRONIC MATERIALS
  • Sayfa Sayıları: ss.2122-2126

Özet

Ba+Yb double-filled n-type skutterudites with a modest degree of charge compensation by Fe on the Co lattice have been synthesized and compacted by spark-plasma sintering, and their thermoelectric properties evaluated at temperatures up to 800 K. Although this approach to making n-type skutterudites seems counterintuitive, the presence of Fe leads to a reduction in the thermal conductivity while it preserves a robust Seebeck coefficient. Consequently, a high ZT in excess of 1.3 was achieved at 800 K in these Fe-containing n-type skutterudite compounds.