Quick Fabrication and Thermoelectric Properties of Cu12Sb4S13 Tetrahedrite

Wang, Juyi; Gu, Meng; Bao, Yefeng; Li, Xiaoya; Chen, Lidong

doi:10.1007/s11664-015-4301-8

Cited by 28 publications

(21 citation statements)

References 9 publications

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“…Therefore, we concluded that using 2:1 molar ratio of Cu and Sb xanthate precursors is optimal in obtaining phase-pure tetrahedrite. Many studies have revealed that the presence of a small amount of impurity phases in the synthetic tetrahedrite cannot be avoided [50][51][52][53][54][55][56][57][58][59] . Previously, phase pure tetrahedrite nanoparticles have been prepared either by using capping agents, such as thiols, or incorporation of different dopants 52,60,61 .…”

Section: Resultsmentioning

confidence: 99%

Scalable synthesis of Cu–Sb–S phases from reactive melts of metal xanthates and effect of cationic manipulation on structural and optical properties

Alqahtani

Khan

Lewis

et al. 2021

Sci Rep

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We report a simple, economical and low temperature route for phase-pure synthesis of two distinct phases of Cu–Sb–S, chalcostibite (CuSbS2) and tetrahedrite (Cu12Sb4S13) nanostructures. Both compounds were prepared by the decomposition of a mixture of bis(O-ethylxanthato)copper(II) and tris(O-ethylxanthato)antimony(III), without the use of solvent or capping ligands. By tuning the molar ratio of copper and antimony xanthates, single-phases of either chalcostibite or tetrahedrite were obtained. The tetrahedrite phase exists in a cubic structure, where the Cu and Sb atoms are present in different coordination environments, and tuning of band gap energy was investigated by the incorporation of multivalent cationic dopants, i.e. by the formation of Zn-doped tetrahedrites Cu12−xZnxSb4S13 (x = 0.25, 0.5, 0.75, 1, 1.2 and 1.5) and the Bi-doped tetrahedrites Cu12Sb4−xBixS13 (x = 0.08, 0.15, 0.25, 0.32, 0.4 and 0.5). Powder X-ray diffraction (p-XRD) confirms single-phase of cubic tetrahedrite structures for both of the doped series. The only exception was for Cu12Sb4−xBixS13 with x = 0.5, which showed a secondary phase, implying that this value is above the solubility limit of Bi in Cu12Sb4S13 (12%). A linear increase in the lattice parameter a in both Zn- and Bi-doped tetrahedrite samples was observed with increasing dopant concentration. The estimated elemental compositions from EDX data are in line with the stoichiometric ratio expected for the compounds formed. The morphologies of samples were investigated using SEM and TEM, revealing the formation of smaller particle sizes upon incorporation of Zn. Incorporation of Zn or Bi into Cu12Sb4S13 led to an increase in band gap energy. The estimated band gap energies of Cu12−xZnxSb4S13 films ranges from 1.49 to 1.6 eV, while the band gaps of Cu12Sb4−xBixS13 films increases from 1.49 to 1.72 eV with increasing x.

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Section: Resultsmentioning

confidence: 99%

Scalable synthesis of Cu–Sb–S phases from reactive melts of metal xanthates and effect of cationic manipulation on structural and optical properties

Alqahtani

Khan

Lewis

et al. 2021

Sci Rep

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“…Synthesis from the elements in sealed tubes is the most widely reported method and has been demonstrated for Cu 3 SbS 3 , 83 'tetrahedrite' Cu 12 Sb 4 S 13 and its mixed Sb-Bi analogue, 85 CuSbSe 2 , 86,87 Cu 3 SbSe 3 , 87,89,90 and CuBiSe 2 . 96,97 Spark sintering of the elements has been used for Cu 3 SbSe 3 84 and Cu 3 SbSe 3 91 ; and.…”

Section: Formation and Properties Of Bulk Thin Film And Nanoparticlementioning

confidence: 99%

Copper—antimony and copper—bismuth chalcogenides—Research opportunities and review for solar photovoltaics

Peccerillo

Durose

2018

MRS Energy & Sustainability

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“…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%

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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Quick Fabrication and Thermoelectric Properties of Cu12Sb4S13 Tetrahedrite

Cited by 28 publications

References 9 publications

Scalable synthesis of Cu–Sb–S phases from reactive melts of metal xanthates and effect of cationic manipulation on structural and optical properties

Scalable synthesis of Cu–Sb–S phases from reactive melts of metal xanthates and effect of cationic manipulation on structural and optical properties

Copper—antimony and copper—bismuth chalcogenides—Research opportunities and review for solar photovoltaics

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

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