Jump to main content
Jump to site search

Issue 5, 2019
Previous Article Next Article

Short-range order in defective half-Heusler thermoelectric crystals

Author affiliations

Abstract

Crystalline solids are characterized by periodic structures, resulting in a diverse assortment of crystal structures that exhibit a wide variety of properties. Here we report short-range order, which results in characteristic diffuse bands in electron diffraction patterns, in a series of defective 19-electron half-Heusler compounds for the first time. The co-existence of the vacancy-related short-range order and the crystalline long-range periodic structure makes these defective half-Heusler compounds promising thermoelectric materials with low thermal conductivity and high electrical conductivity simultaneously. This new finding provides important insights into the intrinsic nature of defective HH compounds, and also proposes a possible strategy for tuning the degree of ordering to offer great potential for further improvement of thermoelectrics.

Graphical abstract: Short-range order in defective half-Heusler thermoelectric crystals

Back to tab navigation

Supplementary files

Article information


Submitted
17 Dec 2018
Accepted
17 Apr 2019
First published
17 Apr 2019

Energy Environ. Sci., 2019,12, 1568-1574
Article type
Communication

Short-range order in defective half-Heusler thermoelectric crystals

K. Xia, P. Nan, S. Tan, Y. Wang, B. Ge, W. Zhang, S. Anand, X. Zhao, G. J. Snyder and T. Zhu, Energy Environ. Sci., 2019, 12, 1568
DOI: 10.1039/C8EE03654C

Social activity

Search articles by author

Spotlight

Advertisements