Thermoelectric Materials: A New Rapid Synthesis Process for Nontoxic and High‐Performance Tetrahedrite Compounds

Barbier, Tristan; Rollin-Martinet, Sabrina; Lemoine, Pierric; Gascoin, Franck; Kaltzoglou, Andreas; Vaqueiro, Paz; Powell, Anthony V.; Guilmeau, Emmanuel

doi:10.1111/jace.13838

Cited by 65 publications

(50 citation statements)

References 34 publications

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“…2). For Tr = Ni, high ZT value at ∼700 K and good thermal stability up to 783 K were confirmed by other research groups, [49][50][51] whereas for Tr = Ni and Zn (co-doped), ZT = 1 has not been followed up so far. Good figures of merit have been demonstrated also for Tr = Mn, 37,52,53 and Tr = Co, 54,55 as well as samples made of mixed natural and synthetic tetrahedrites.…”

Section: Tetrahedrite (P-type)supporting

confidence: 55%

“…13,59 For Cu 12−x Tr x Sb 4 S 13 , various synthesis techniques have been examined for large-scale TE application. 50,58,[60][61][62] The Te substituted system Cu 12 Sb 4−x Te x S 13 (0 ≤ x ≤ 1) has also been examined. 63 It was expected that excess electrons donated from Te would fill the unoccupied state near the top of the VB.…”

Section: Tetrahedrite (P-type)mentioning

confidence: 99%

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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: Tetrahedrite (P-type)supporting

confidence: 55%

Section: Tetrahedrite (P-type)mentioning

confidence: 99%

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

2016

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“…The mechanochemical synthesis as a version of solid-state approach has been applied for various materials [13][14][15][16][17][18][19][20]. The combination of mechanical alloying and spark plasma sintering has documented the possibility to synthesize high-performance thermoelectric materials with the possibility to scale the synthesis process.…”

Section: Introductionmentioning

confidence: 99%

Chalcogenide Quaternary Cu2FeSnS4 Nanocrystals for Solar Cells: Explosive Character of Mechanochemical Synthesis and Environmental Challenge

Baláž

Sayagués

et al. 2017

Crystals

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Abstract:In this study we demonstrate the synthesis of quaternary semiconductor nanocrystals of stannite Cu 2 FeSnS 4 /rhodostannite Cu 2 FeSn 3 S 8 (CFTS) via mechanochemical route using Cu, Fe, Sn and S elements as precursors in one-pot experiments. Methods of X-ray diffraction (XRD), nitrogen adsorption, high-resolution transmission electron microscopy (HRTEM), scanning transmission electron microscopy (STEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) were applied to characterize properties of the unique nanostructures. Mechanochemical route of synthesis induced new phenomena like explosive character of reaction, where three stages could be identified and the formation of nanostructures 5-10 nm in size. By using XPS method, Cu(I), Fe(II), Sn(IV) and S(-II) species were identified on the surface of CFTS. The value of optical band gap 1.27 eV is optimal for semiconductors applicable as absorbers in solar cells. The significant photocatalytic activity of the CFTS nanocrystals was also evidenced. The obtained results confirm the excellent properties of the quaternary semiconductor nanocrystals synthesized from earth-abundant elements.

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“…Barbier et al [49] have investigated another processing technique based on a combination of high-energy ball milling of stoichiometric mixtures of elemental powders and spark plasma sintering. This study, performed on the composition Cu 10.4 Ni 1.6 Sb 4 S 13 , has demonstrated that pure, highly dense samples of this tetrahedrite can be synthesized over a reduced period of time (estimated to eight times shorter by the authors) with respect to conventional solid-state synthesis.…”

Section: Scaling Up Tetrahedrite Synthesismentioning

confidence: 99%

Tetrahedrites: Prospective Novel Thermoelectric Materials

Candolfi¹,

Bouyrie²,

Sassi³

et al. 2016

Thermoelectrics for Power Generation - A Look at Trends in the Technology

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Since their discovery in 1845, tetrahedrites, a class of minerals composed of relatively earth-abundant and nontoxic elements, have been extensively studied in mineralogy and geology. Despite a large body of publications on this subject, their transport properties had not been explored in detail. The discovery of their interesting high-temperature thermoelectric properties and peculiar thermal transport has led to numerous experimental and theoretical studies over the last 4 years with the aim of beter understanding the relationships between the crystal, electronic, and thermal properties. Tetrahedrites provide a remarkable example of anharmonic system giving rise to a temperature dependence of the latice thermal conductivity that mirrors that of amorphous compounds. Here, we review the progress of research on the transport properties of tetrahedrites, highlighting the main experimental and theoretical results that have been obtained so far and the important issues and questions that remain to be investigated.

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Thermoelectric Materials: A New Rapid Synthesis Process for Nontoxic and High‐Performance Tetrahedrite Compounds

Abstract: International audienc

Cited by 65 publications

References 34 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

Chalcogenide Quaternary Cu2FeSnS4 Nanocrystals for Solar Cells: Explosive Character of Mechanochemical Synthesis and Environmental Challenge

Tetrahedrites: Prospective Novel Thermoelectric Materials

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