Jump to main content
Jump to site search

Issue 11, 2016
Previous Article Next Article

The thermoelectric performance of anisotropic SnSe doped with Na

Author affiliations

Abstract

Lead-free polycrystalline SnSe is a promising thermoelectric compound consisting of earth-abundant elements. However, the poor electrical transport property for low intrinsic defect concentration (3 × 1017 cm−3) limits the usage of the stoichiometric SnSe compound. In this work, Na2Se as an acceptor was doped into SnSe in order to optimize the electrical transport properties, especially to increase the carrier concentration. As a result, the carrier concentrations increased and saturated at about 1.0 × 1019 cm−3 for Na0.01Sn0.99Se at 300 K, and a maximum power factor of 0.48 mW m−1 K−2 was obtained. A maximum zT value of 0.75 was obtained at 823 K for Na0.01Sn0.99Se along the direction perpendicular to the sintering pressure, which is 25% higher than that (0.6) of the undoped SnSe compound.

Graphical abstract: The thermoelectric performance of anisotropic SnSe doped with Na

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Sep 2015, accepted on 08 Jan 2016 and first published on 15 Jan 2016


Article type: Paper
DOI: 10.1039/C5RA19469E
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2016,6, 9112-9116
  •   Request permissions

    The thermoelectric performance of anisotropic SnSe doped with Na

    H. Leng, M. Zhou, J. Zhao, Y. Han and L. Li, RSC Adv., 2016, 6, 9112
    DOI: 10.1039/C5RA19469E

Search articles by author

Spotlight

Advertisements