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Transverse thermoelectric effect in a-axis inclinedly oriented SnSe thin films

Abstract

Tin selenide (SnSe) has recently attracted great attention as a new promising thermoelectric material. In this paper, a-axis inclinedly oriented SnSe thin films have been fabricated by pulsed laser deposition for the development of transverse thermoelectric effect. Large open-circuit voltage signals along the film plane are all clearly observed when the film surface was illuminated by different lasers with the wavelength ranging from 532 to 2200 nm with no external bias or a built-in electric field, and the amplitude of the output voltage can be enhanced by tuning the inclination angle of the films or the applied temperature difference across the film thickness. Moreover, transverse open-circuit voltage signals are also detected when the film surface was irradiated by a thermal heater. This work demonstrates the novel potential application of SnSe for self-powered broad-band light detectors or thermal sensors.

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Publication details

The article was received on 13 Sep 2018, accepted on 06 Nov 2018 and first published on 07 Nov 2018


Article type: Paper
DOI: 10.1039/C8TC04633F
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Transverse thermoelectric effect in a-axis inclinedly oriented SnSe thin films

    S. Hou, D. Yuan, G. Yan, J. Wang, B. Liang, G. Fu and S. Wang, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC04633F

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