Designing chemical analogs to PbTe with intrinsic high band degeneracy and low lattice thermal conductivity
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DOI: 10.1038/s41467-019-08542-1
Abstract: High-efficiency thermoelectric materials require simultaneously high power factors and low thermal conductivities. Aligning band extrema to achieve high band degeneracy, as realized in PbTe, is one of the most efficient approaches to enhance power factor.… read more here.
Keywords: low lattice; band; band degeneracy; lattice thermal ... See more keywords
Excellent thermoelectric performance of Fe2NbAl alloy induced by strong crystal anharmonicity and high band degeneracy
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DOI: 10.1038/s41535-024-00671-1
Abstract: Full-Heusler alloys with earth-abundant elements exhibit high mechanical strength and favorable electrical transport behavior, but their high intrinsic lattice thermal conductivity limits potential thermoelectric application. Here, the thermoelectric transport properties of Fe-based Full-Heusler Fe2MAl (M = V,… read more here.
Keywords: performance; high band; conductivity; band degeneracy ... See more keywords
Manipulation of Band Degeneracy and Lattice Strain for Extraordinary PbTe Thermoelectrics
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DOI: 10.34133/2020/8151059
Abstract: Maximizing band degeneracy and minimizing phonon relaxation time are proven to be successful for advancing thermoelectrics. Alloying with monotellurides has been known to be an effective approach for converging the valence bands of PbTe for… read more here.
Keywords: pbte; lattice strain; strain; band degeneracy ... See more keywords