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Issue 41, 2018
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Dramatically improving thermoelectric performance of topological half-Heusler compound LuPtSb via hydrostatic pressure

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Abstract

Recent research studies show that many materials with topological properties exhibit novel thermoelectric performance, such as BiSe, Bi2Te3 and Bi2Se3. Meanwhile, the topologically non-trivial states are also discovered in some half-Heusler materials. By investigating the typical topological half-Heusler compound LuPtSb within the frameworks of both density functional theory and Boltzmann transport theory, we discovered that the figure of merit (ZT) dramatically increases from 0.3 to 1.5 at 900 K via hydrostatic pressure. There seems to be a strong relationship between the topological state and thermoelectrics, and our work provides some new and unique insights to understand the relationship.

Graphical abstract: Dramatically improving thermoelectric performance of topological half-Heusler compound LuPtSb via hydrostatic pressure

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Publication details

The article was received on 30 Jul 2018, accepted on 16 Sep 2018 and first published on 18 Sep 2018


Article type: Paper
DOI: 10.1039/C8TA07350C
Citation: J. Mater. Chem. A, 2018,6, 20069-20075

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    Dramatically improving thermoelectric performance of topological half-Heusler compound LuPtSb via hydrostatic pressure

    S. Huang, X. Liu, W. Zheng, J. Guo, R. Xiong, Z. Wang and J. Shi, J. Mater. Chem. A, 2018, 6, 20069
    DOI: 10.1039/C8TA07350C

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