Jump to main content
Jump to site search

Issue 1, 2015
Previous Article Next Article

Band engineering of high performance p-type FeNbSb based half-Heusler thermoelectric materials for figure of merit zT > 1

Author affiliations

Abstract

We report new p-type FeNb1−xTixSb (0.04 ≤ x ≤ 0.24) half-Heusler thermoelectric materials with a maximum zT of 1.1 at 1100 K, which is twice that of the ZrCoSb half-Heusler alloys. The electrical properties are optimized by a tradeoff between the band effective mass and mobility via a band engineering approach. A high content of Ti up to x = 0.2 optimizes the power factor and reduces the lattice thermal conductivity. In view of abundantly available elements, good stability and high zT, FeNb1−xTixSb alloys could be promising materials for high temperature power generation.

Graphical abstract: Band engineering of high performance p-type FeNbSb based half-Heusler thermoelectric materials for figure of merit zT > 1

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Sep 2014, accepted on 10 Nov 2014 and first published on 11 Nov 2014


Article type: Communication
DOI: 10.1039/C4EE03042G
Author version
available:
Download author version (PDF)
Citation: Energy Environ. Sci., 2015,8, 216-220

  •   Request permissions

    Band engineering of high performance p-type FeNbSb based half-Heusler thermoelectric materials for figure of merit zT > 1

    C. Fu, T. Zhu, Y. Liu, H. Xie and X. Zhao, Energy Environ. Sci., 2015, 8, 216
    DOI: 10.1039/C4EE03042G

Search articles by author

Spotlight

Advertisements