Thermoelectric properties of the tetrahedrite-tennantite solid solutions Cu.sub.12./sub.Sb.sub.4-x./sub.As.sub.x./sub.S.sub.13./sub. and Cu.sub.10./sub.Co.sub.2./sub.Sb.sub.4-y./sub.As.sub.y./sub.S.sub.13./sub. (0 ≤ x, y ≤ 4)

0519518 - FZÚ 2020 RIV GB eng J - Journal Article
Levinský, Petr - Candolfi, C. - Dauscher, A. - Tobola, J. - Hejtmánek, Jiří - Lenoir, B.
Thermoelectric properties of the tetrahedrite-tennantite solid solutions Cu₁₂Sb_4-xAs_xS₁₃ and Cu₁₀Co₂Sb_4-yAs_yS₁₃ (0 ≤ x, y ≤ 4).
Physical Chemistry Chemical Physics. Roč. 21, č. 8 (2019), s. 4547-4555. ISSN 1463-9076. E-ISSN 1463-9084
R&D Projects: GA ČR GA18-12761S
Institutional support: RVO:68378271
Keywords : thermoelectric * tetrahedrite * tennantite * arsenic substitution * material synthesis
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.430, year: 2019
Method of publishing: Limited access
https://doi.org/10.1039/c9cp00213h

Tetrahedrites, a class of copper- and sulfur-rich minerals, exhibit inherently very low lattice thermal conductivity and adjustable electronic properties that make them interesting candidates for thermoelectric applications. Here, we investigate the influence of isovalent As substitution on the Sb site on the structural and transport properties (5–700 K) of the two solid solutions Cu12Sb4-x−xAsxS13 and Cu10Co2Sb4-y−yAsyS13 (0 ≤ x, y ≤ 4). Electronic band structure calculations predict that As has only a weak influence on the valence bands and hence, on the p-type metallic character of Cu12Sb4S13.
Permanent Link: http://hdl.handle.net/11104/0304488