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Royal Society of Chemistry, Energy & Environmental Science, 4(13), p. 1250-1258, 2020

DOI: 10.1039/c9ee03921j

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Systematic over-estimation of lattice thermal conductivity in materials with electrically-resistive grain boundaries

Journal article published in 2020 by Jimmy Jiahong Kuo ORCID, Max Wood ORCID, Tyler J. Slade ORCID, Mercouri G. Kanatzidis ORCID, G. Jeffrey Snyder ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The inverse trend between carrier mobility and lattice thermal conductivity is found to be an artifact of grain boundary electrical resistance. A two-phase transport model is required to properly account for the effect.