High Performance Thermoelectricity in Earth-Abundant Compounds Based on Natural Mineral Tetrahedrites
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In this article, the authors report dimensionless thermoelectric properties of tetrahedrites, the most widespread sulfosalts on Earth, and further show that the natural mineral itself can be used directly as an inexpensive source of energy.Abstract:
Thermoelectric materials can convert waste heat into electricity, potentially improving the effi ciency of energy usage in both industry and everyday life. Unfortunately, known good thermoelectric materials often are comprised of elements that are in low abundance and require careful doping and complex synthesis procedures. Here, we report dimensionless thermoelectric fi gure of merit near unity in compounds of the form Cu 12 − x M x Sb 4 S 13 , where M is a transition metal such as Zn or Fe, for wide ranges of x . The compounds investigated here span the range of compositions of the natural mineral family of tetrahedrites, the most widespread sulfosalts on Earth, and we further show that the natural mineral itself can be used directly as an inexpensive source thermoelectric material. Thermoelectrics comprised of earth-abundant elements will pave the way to many new, low cost thermoelectric energy generation opportunities.read more
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Charge Transport and Thermoelectric Properties of Sn-Doped Tetrahedrites Cu 12 Sb 4-y Sn y S 13
Hee-Jae Ahn,Il-Ho Kim +1 more
TL;DR: In this paper, a tetrahedrite compound was prepared by mechanical alloying and hot pressing, and their charge transport and thermoelectric properties were analyzed using X-ray diffraction analysis.
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Copper-Ion Dynamics and Phase Segregation in Cu-Rich Tetrahedrite: an NMR Study
TL;DR: In this paper, the NMR signatures of phase segregation into Cu-poor (x ≈ 0) and Cu-rich (x ≥ 0.63) phases were identified.
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Germanite derivative materials : synthesis, crystallographic structure from multi-scale characterizations and thermoelectric properties
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Posted Content
First-principles study of electronic transport and structural properties of Cu$_{12}$Sb$_4$S$_{13}$ in its high-temperature phase
TL;DR: In this article, the structural and electronic transport properties of tetrahedrite, Cu$12}$Sb$_4$S$13}, in its high-temperature phase were investigated.
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