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Enhanced thermoelectric performance in ternary spinel Cu4Mn2Te4 via synergistic effect of tellurium-deficiency and chlorine-doping

Abstract

The chemistry of copper-based chalcogenides has received considerable attention due to their diverse structures and potential applications in the area of thermoelectric (TE) material. In this communicaton, a series of spinel-type Cu4Mn2Te4-based samples have been successfully prepared and the high TE performances are attributed to the enhanced powder factor and low thermal conductivity via synergistic effect of Te-deficiency and Cl-doping. Consequently, a maximum TE figure of merit (ZT) of ~0.4 was achieved for the Cu4Mn2Te3.93Cl0.03 sample at 700K, which was about 100% enhanced in comparison with the undoped Cu4Mn2Te4 sample and one of the highest ZT value reported for p-type spinel tellurides.

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Publication details

The article was received on 31 Aug 2017, accepted on 03 Oct 2017 and first published on 03 Oct 2017


Article type: Communication
DOI: 10.1039/C7DT03223D
Citation: Dalton Trans., 2017, Accepted Manuscript
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    Enhanced thermoelectric performance in ternary spinel Cu4Mn2Te4 via synergistic effect of tellurium-deficiency and chlorine-doping

    H. Chen, H. Lin, Y. Liu, X. Wu and L. Wu, Dalton Trans., 2017, Accepted Manuscript , DOI: 10.1039/C7DT03223D

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