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/content/aip/journal/aplmater/4/10/10.1063/1.4952994
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/content/aip/journal/aplmater/4/10/10.1063/1.4952994
2016-06-01
2016-09-25

Abstract

Here we report the thermoelectric properties of NbCoSn-based n-type half-Heuslers (HHs) that were obtained through arc melting, ball milling, and hot pressing process. With 10% Sb substitution at the Sn site, we obtained enhanced n-type properties with a maximum power factor reaching ∼35 W cm−1 K−2 and figure of merit (ZT) value ∼0.6 in NbCoSnSb. The ZT is doubled compared to the previous report. In addition, the specific power cost ($ W−1) is decreased by ∼68% comparing to HfNiSn-based n-type HH because of the elimination of Hf.

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