期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 51, 期 11, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aaaa58
关键词
thermoelectric materials; half-Heusler alloys; thermoelectric properties; optimization strategy
资金
- National Science Fund for Distinguished Young Scholars [51725102]
- Natural Science Foundation of China [11574267, 51571177, 51761135127]
Half-Heusler compounds, which possess robust mechanical strength, good high temperature thermal stability and multifaceted physical properties, have been verified as a class of promising thermoelectric materials. During the last two decades, great progress has been made in half-Heusler thermoelectrics. In this review, we summarize some representative work of p-type half-Heusler materials, the thermoelectric performance of which has been remarkably enhanced in recent years. We introduce the features of the crystal and electronic structures of half-Heusler compounds, and successful strategies for optimizing electrical and thermal transport in the p-type RFeSb (R = V, Nb, Ta) and MCoSb (M = Ti, Zr, Hf) based systems, including band engineering, the formation of solid solutions and hierarchical phonon scattering. The outlook for future research directions of half-Heusler thermoelectrics is also presented.
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