Issue 26, 2016

Enhancement of anisotropic thermoelectric performance of tungsten disulfide by titanium doping

Abstract

Thermoelectric power generators, as one promising renewable energy resource, have attracted intense attention over the past few decades. However, the large-scale use of thermoelectric convertors relies on cost-effective and eco-friendly thermoelectric materials with decent efficiency. For transition metal dichalcogenide semiconductors (TMDCs), a potential thermoelectric material, their thermoelectric efficiency is hampered by their poor intrinsic electrical conductivities. Herein, we demonstrate that the thermoelectric performance of WS2, a typical TMDC material, can be dramatically enhanced by up to 70 times by doping with titanium. The anisotropic thermoelectric properties of these layered WS2 structures were also systematically revealed. The realization of decent thermoelectric efficiency of WS2 by a facile doping strategy will stimulate future explorations of thermoelectric applications for other TMDCs and layered materials.

Graphical abstract: Enhancement of anisotropic thermoelectric performance of tungsten disulfide by titanium doping

Supplementary files

Article information

Article type
Paper
Submitted
15 Apr 2016
Accepted
07 Jun 2016
First published
07 Jun 2016

J. Mater. Chem. A, 2016,4, 10159-10165

Author version available

Enhancement of anisotropic thermoelectric performance of tungsten disulfide by titanium doping

Z. Huang, T. Wu, S. Kong, Q. Meng, W. Zhuang, P. Jiang and X. Bao, J. Mater. Chem. A, 2016, 4, 10159 DOI: 10.1039/C6TA03122F

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