n-Type Carbon Nanotubes/Silver Telluride Nanohybrid Buckypaper with a High-Thermoelectric Figure of Merit
نویسندگان
چکیده
منابع مشابه
Epitaxial CrN thin films with high thermoelectric figure of merit.
A large enhancement of the thermoelectric figure of merit is reported in single-crystalline films of CrN. The mechanism of the reduction of the lattice thermal conductivity in cubic CrN is similar to the resonant bonding in IV-VI compounds. Therefore, useful ideas from classic thermo-electrics can be applied to tune functionalities in transition metal nitrides and oxides.
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Thomas Lehmann,1,2 Dmitry A. Ryndyk,1,2,3 and Gianaurelio Cuniberti1,2,3 1Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany 2Dresden Center for Computational Materials Science (DCMS), TU Dresden, 01062 Dresden, Germany 3Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany (Received 6 January 2015; revised manuscri...
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Half-Heuslers would be important thermoelectric materials due to their high temperature stability and abundance if their dimensionless thermoelectric figure of merit (ZT) could be made high enough. The highest peak ZT of a p-type half-Heusler has been so far reported about 0.5 due to the high thermal conductivity. Through a nanocomposite approach using ball milling and hot pressing, we have ach...
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We have investigated the electronic thermal conductivity and thermoelectric figure of merit of ~100! and ~111! oriented PbTe/Pb12xEuxTe quantum wells. Our theoretical formalism includes the nonparabolicity of the carrier dispersion, band anisotropy, as well as carrier scattering on acoustic and optical phonons and presents a substantial improvement over existing models. The kinetic equations ar...
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Solid-state thermoelectric technology offers a promising solution for converting waste heat to useful electrical power. Both high operating temperature and high figure of merit zT are desirable for high-efficiency thermoelectric power generation. Here we report a high zT of ∼1.5 at 1,200 K for the p-type FeNbSb heavy-band half-Heusler alloys. High content of heavier Hf dopant simultaneously opt...
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ژورنال
عنوان ژورنال: ACS Applied Materials & Interfaces
سال: 2014
ISSN: 1944-8244,1944-8252
DOI: 10.1021/am4059167