High-performance thermoelectric mineral Cu12-xNi xSb4S13 tetrahedrite

Koichiro Suekuni, Kojiro Tsuruta, Masaru Kunii, Hirotaka Nishiate, Eiji Nishibori, Sachiko Maki, Michihiro Ohta, Atsushi Yamamoto, Mikio Koyano

Research output: Contribution to journalArticle

152 Citations (Scopus)

Abstract

X-ray structural analysis and high-temperature thermoelectric properties measurements are performed on polycrystalline samples of artificial mineral Cu12-xNixSb4S13 tetrahedrite. Analysis of the atomic displacement parameter manifests low-energy vibration of Cu(2) out of CuS3 triangle plane. The vibration results in low lattice thermal conductivity of less than 0.5 W K-1 m -1. By tuning of the Ni composition x and decrease of electronic thermal conductivity, dimensionless thermoelectric figure of merit for x = 1.5 achieves 0.7 at 665 K, which is a considerably high value among p-type Pb-free sulfides. Because the tetrahedrite is an environmentally friendly material, it constitutes a good thermoelectric material for use in support of a sustainable society.

Original languageEnglish
Article number043712
JournalJournal of Applied Physics
Volume113
Issue number4
DOIs
Publication statusPublished - Jan 28 2013
Externally publishedYes

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thermal conductivity
minerals
vibration
thermoelectric materials
structural analysis
figure of merit
triangles
sulfides
tuning
electronics
x rays
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Suekuni, K., Tsuruta, K., Kunii, M., Nishiate, H., Nishibori, E., Maki, S., ... Koyano, M. (2013). High-performance thermoelectric mineral Cu12-xNi xSb4S13 tetrahedrite. Journal of Applied Physics, 113(4), [043712]. https://doi.org/10.1063/1.4789389

High-performance thermoelectric mineral Cu12-xNi xSb4S13 tetrahedrite. / Suekuni, Koichiro; Tsuruta, Kojiro; Kunii, Masaru; Nishiate, Hirotaka; Nishibori, Eiji; Maki, Sachiko; Ohta, Michihiro; Yamamoto, Atsushi; Koyano, Mikio.

In: Journal of Applied Physics, Vol. 113, No. 4, 043712, 28.01.2013.

Research output: Contribution to journalArticle

Suekuni, K, Tsuruta, K, Kunii, M, Nishiate, H, Nishibori, E, Maki, S, Ohta, M, Yamamoto, A & Koyano, M 2013, 'High-performance thermoelectric mineral Cu12-xNi xSb4S13 tetrahedrite', Journal of Applied Physics, vol. 113, no. 4, 043712. https://doi.org/10.1063/1.4789389
Suekuni K, Tsuruta K, Kunii M, Nishiate H, Nishibori E, Maki S et al. High-performance thermoelectric mineral Cu12-xNi xSb4S13 tetrahedrite. Journal of Applied Physics. 2013 Jan 28;113(4). 043712. https://doi.org/10.1063/1.4789389
Suekuni, Koichiro ; Tsuruta, Kojiro ; Kunii, Masaru ; Nishiate, Hirotaka ; Nishibori, Eiji ; Maki, Sachiko ; Ohta, Michihiro ; Yamamoto, Atsushi ; Koyano, Mikio. / High-performance thermoelectric mineral Cu12-xNi xSb4S13 tetrahedrite. In: Journal of Applied Physics. 2013 ; Vol. 113, No. 4.
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