Effective role of filling fraction control in p-type CexFe3CoSb12 skutterudite thermoelectric materials

Sang Hyun Bae, Kyu Hyoung Lee, Soon Mok Choi

Research output: Contribution to journalArticle

Abstract

p-type Ce-filled Fe4-xCoxSb12 skutterudite is a promising thermoelectric material with high thermal-to-electric conversion efficiency at mid-to-high temperatures. However, fabrication of a complete single phase is required in order to secure performance reliability due to the charge state of Ce. We herein report that optimization of the Ce filling fraction according to the compositions and synthetic processes is a critical factor to develop a manufacturing process that can be applied to massive production of single phase p-type Ce-filled skutterudite. The durable maximum zT (thermoelectric figure of merit) value of Ce-filled skutterudites fabricated here was 0.81 at 723 K in Ce0.86Fe3CoSb12.09.

LanguageEnglish
Pages44-47
Number of pages4
JournalIntermetallics
Volume105
DOIs
Publication statusPublished - 2019 Feb 1

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Skutterudites
Conversion efficiency
Fabrication
Chemical analysis
Temperature
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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abstract = "p-type Ce-filled Fe4-xCoxSb12 skutterudite is a promising thermoelectric material with high thermal-to-electric conversion efficiency at mid-to-high temperatures. However, fabrication of a complete single phase is required in order to secure performance reliability due to the charge state of Ce. We herein report that optimization of the Ce filling fraction according to the compositions and synthetic processes is a critical factor to develop a manufacturing process that can be applied to massive production of single phase p-type Ce-filled skutterudite. The durable maximum zT (thermoelectric figure of merit) value of Ce-filled skutterudites fabricated here was 0.81 at 723 K in Ce0.86Fe3CoSb12.09.",
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Effective role of filling fraction control in p-type CexFe3CoSb12 skutterudite thermoelectric materials. / Bae, Sang Hyun; Lee, Kyu Hyoung; Choi, Soon Mok.

In: Intermetallics, Vol. 105, 01.02.2019, p. 44-47.

Research output: Contribution to journalArticle

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