Effect of Ce filling fraction on thermoelectric transport properties of p-type CeyFe1.5Co2.5Sb12

Xin Feng Tang, Li Dong Chen, Takashi Goto, Toshio Hirai, Run Zhang Yuan

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Effect of Ce filling fraction on the thermoelectric transport properties of p-type Co-rich filled skutteudite compounds: CeyFe1.5Co2.5Sb12(.y = 0-0.46) were investigated. CeyFe1.5Co2.5Sb12 showed p-type conduction. Hall coefficient RH increased with increasing Ce filling fraction. Hole concentration p and electrical conductivity δ decreased with increasing Ce filling fraction. Seebeck coefficient a increased with increasing Ce filling fraction, when Ce filling fraction was about 0.3, the lattice thermal conductivity κ1 reached the minimum value. It indicated that the effect of Ce rattling on phonon scattering was the strongest as Sb-dodecahedron partial voids were filled by Ce. A maximum ZT value of 1.1 was obtained for Co-rich Ce0.28Fe1.52Co2.48Sb12 at 750 K.

本文言語English
ページ(範囲)2464-2465
ページ数2
ジャーナルWuli Xuebao/Acta Physica Sinica
49
12
出版ステータスPublished - 2000 12月 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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