Title

Structural, Chemical, Electrical, and Thermal Properties of n-Type NbFeSb

Document Type

Article

Publication Date

2019

Digital Object Identifier (DOI)

https://doi.org/10.1021/acs.inorgchem.8b02531

Abstract

We report on the structural, chemical, electrical, and thermal properties of n-type polycrystalline NbFeSb synthesized by induction melting of the elements. Although several studies on p-type conduction of this half-Heusler composition have recently been reported, including reports of relatively high thermoelectric properties, very little has been reported on the transport properties of n-type compositions. We combine transport property investigations together with short- and long-range structural data obtained by Mössbauer spectroscopy of iron-57 and antimony-121 and by neutron total scattering, as well as first-principles calculations. In our investigation, we show that n-type conduction can occur from antiphase boundaries in this material. This work is intended to provide a greater understanding of the fundamental properties of NbFeSb as this material continues to be of interest for potential thermoelectric applications.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Inorganic Chemistry, v. 58, issue 3, p. 1826-1833

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