Low thermal conductivity in ternary Cu4Sn7S16 compound

Bourgès, Cédric; Lemoine, Pierric; Lebedev, Oleg I.; Daou, Ramzy; Hardy, V.; Malaman, B.; Guilmeau, Emmanuel

doi:10.1016/j.actamat.2015.06.046

Cited by 65 publications

(73 citation statements)

References 39 publications

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“…87,95 The PF remains lower than 0.2 mW/K 2 m, whereas the value of κ becomes smaller than 1 W/Km at high temperatures. 95 The structural complexity and the anharmonic vibrational modes of the Cu atoms (Fig. 3(c)) probably contribute to the strong phonon scattering.…”

Section: E Cu-sb-s and Cu-sn-s Systems (P-type And N-type)mentioning

confidence: 99%

Research Update: Cu–S based synthetic minerals as efficient thermoelectric materials at medium temperatures

2016

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Synthetic minerals and related systems based on Cu–S are attractive thermoelectric (TE) materials because of their environmentally benign characters and high figures of merit at around 700 K. This overview features the current examples including kesterite, binary copper sulfides, tetrahedrite, colusite, and chalcopyrite, with emphasis on their crystal structures and TE properties. This survey highlights the superior electronic properties in the p-type materials as well as the close relationship between crystal structures and thermophysical properties. We discuss the mechanisms of high power factor and low lattice thermal conductivity, approaching higher TE performances for the Cu–S based materials.

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Section: E Cu-sb-s and Cu-sn-s Systems (P-type And N-type)mentioning

confidence: 99%

Research Update: Cu–S based synthetic minerals as efficient thermoelectric materials at medium temperatures

2016

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“…A small ZT of 0.2, however, was achieved at 600 K due to its low electrical conductivity. [67] Contrast to diamond-like structure, I B -V A -VI A compounds AgSbSe 2 and AgBiS 2 are crystallized in the cubic rock salt structure (Fm-3m) at room temperature with disordered Ag and Sb/Bi positions and ordered Se/S atoms. The lone pair electrons on the V A elements (such as active 5s 2 pairs in Sb) would distort the crystal lattice and lead to strong anharmonicity in the V A -VI A bond and ultimately, low thermal conductivity, such as in AgBiS 2 .…”

Section: Ternary A-b-x System (Group 3)mentioning

confidence: 99%

Thermoelectric Enhancement of Different Kinds of Metal Chalcogenides

Han

Sun

et al. 2016

Advanced Energy Materials

165

114

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Due to the urgency of our energy and environmental issues, a variety of cost-effective and pollution-free technologies have attracted considerable attention, among which thermoelectric technology has made enormous progress. Substantial numbers of new thermoelectric materials are created with high figure of merit (ZT) by using advanced nanoscience and nanotechnology. This is especially true in the case of metalchalcogenide-based materials, which possess both relatively high ZT and low cost among all the different kinds of thermoelectric materials. Here, comprehensive coverage of recent advances in metal chalcogenides and their correlated thermoelectric enhancement mechanisms are provided. Several new strategies are summarized with the hope that they can inspire further enhancement of performance, both in metal chalcogenides and in other materials. Disciplines Engineering | Physical Sciences and Mathematics Publication DetailsHan, C., Sun, Q., Li, Z. & Dou, S. X. (2016) Several new strategies are summarized with the hope that they can inspire further enhancement of performance, both in metal chalcogenides and in other materials.2

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“…Ternary chalcogenides Cu-Sn-S based compounds [1][2][3] or oxide ceramics 4,5 have attracted much attention in thermoelectrics in recent years, due to earth-abundance of constituent elements or thermal stability in air. Therefore, the development of these materials is crucial if thermoelectrics is to supply a significant fraction of the world's energy needs.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the thermoelectric performance of Cu₃SnS₄-based solid solutions through coordination of the Seebeck coefficient and carrier concentration

et al. 2017

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Low thermal conductivity in ternary Cu4Sn7S16 compound

Cited by 65 publications

References 39 publications

Research Update: Cu–S based synthetic minerals as efficient thermoelectric materials at medium temperatures

Research Update: Cu–S based synthetic minerals as efficient thermoelectric materials at medium temperatures

Thermoelectric Enhancement of Different Kinds of Metal Chalcogenides

Enhancing the thermoelectric performance of Cu₃SnS₄-based solid solutions through coordination of the Seebeck coefficient and carrier concentration

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Low thermal conductivity in ternary Cu4Sn7S16 compound

Cited by 65 publications

References 39 publications

Research Update: Cu–S based synthetic minerals as efficient thermoelectric materials at medium temperatures

Research Update: Cu–S based synthetic minerals as efficient thermoelectric materials at medium temperatures

Thermoelectric Enhancement of Different Kinds of Metal Chalcogenides

Enhancing the thermoelectric performance of Cu3SnS4-based solid solutions through coordination of the Seebeck coefficient and carrier concentration

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Enhancing the thermoelectric performance of Cu₃SnS₄-based solid solutions through coordination of the Seebeck coefficient and carrier concentration