High Performance Thermoelectricity in Earth-Abundant Compounds Based on Natural Mineral Tetrahedrites
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TLDR
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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High-performance thermoelectric mineral Cu12−xNixSb4S13 tetrahedrite
Koichiro Suekuni,K. Tsuruta,Masaru Kunii,Hirotaka Nishiate,Eiji Nishibori,Sachiko Maki,Michihiro Ohta,Atsushi Yamamoto,Mikio Koyano +8 more
TL;DR: In this paper, X-ray structural analysis and high-temperature thermoelectric properties measurements are performed on polycrystalline samples of artificial mineral Cu12−xNixSb4S13 tetrahedrite.
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TL;DR: In this paper, the main progresses and achievements in copper-based thermoelectric materials are summarized, and the challenges for commercial applications by using these Cu-based materials are discussed.
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TL;DR: In this article, the authors discuss how recent computational advances are revolutionizing our ability to predict electron and phonon transport and scattering, as well as materials dopability, and examine efficient approaches to calculate critical transport properties across large chemical spaces.
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Studies on thermoelectric figure of merit of Na-doped p-type polycrystalline SnSe
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