Enhanced thermoelectric performance in TiNiSn-based half-Heuslers

R A Downie; D A MacLaren; R I Smith; J W G Bos

doi:10.1039/c2cc37121a

Enhanced thermoelectric performance in TiNiSn-based half-Heuslers

Chem Commun (Camb). 2013 May 14;49(39):4184-6. doi: 10.1039/c2cc37121a. Epub 2013 Jan 4.

Authors

R A Downie¹, D A MacLaren, R I Smith, J W G Bos

Affiliation

¹ Institute of Chemical Sciences and Centre for Advanced Energy Storage and Recovery, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH 14 4AS, UK.

PMID: 23287797
DOI: 10.1039/c2cc37121a

Abstract

Thermoelectric figures of merit, ZT > 0.5, have been obtained in arc-melted TiNiSn-based ingots. This promising conversion efficiency is due to a low lattice thermal conductivity, which is attributed to excess nickel in the half-Heusler structure.