Charge-Compensated n-Type Skutterudites
JOURNAL OF ELECTRONIC MATERIALS, cilt.39, sa.9, ss.2122-2126, 2010 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 39 Sayı: 9
- Basım Tarihi: 2010
- Doi Numarası: 10.1007/s11664-009-0990-1
- Dergi Adı: JOURNAL OF ELECTRONIC MATERIALS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2122-2126
- İstanbul Üniversitesi Adresli: Evet
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.