Abstract
SnSe has been prepared by arc-melting, as mechanically robust pellets, consisting of highly oriented polycrystals. This material has been characterized by neutron powder diffraction (NPD), scanning electron microscopy, and transport measurements. A microscopic analysis from NPD data demonstrates a quite perfect stoichiometry SnSe0.98(2) and a fair amount of anharmonicity of the chemical bonds. The Seebeck coefficient reaches a record maximum value of 668 μV K−1 at 380 K; simultaneously, this highly oriented sample exhibits an extremely low thermal conductivity lower than 0.1 W m−1 K−1 around room temperature, which are two of the main ingredients of good thermoelectric materials. These excellent features exceed the reported values for this semiconducting compound in single crystalline form in the moderate-temperatures region and highlight its possibilities as a potential thermoelectric material.
Authors
6
- F. Serrano-Sánchez (first)
- M. Gharsallah (additional)
- N. M. Nemes (additional)
- F. J. Mompean (additional)
- J. L. Martínez (additional)
- J. A. Alonso (additional)
References
20
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Dates
Type | When |
---|---|
Created | 10 years, 6 months ago (Feb. 23, 2015, 1 p.m.) |
Deposited | 2 years ago (Aug. 8, 2023, 9:32 p.m.) |
Indexed | 3 weeks, 3 days ago (July 30, 2025, 7:04 a.m.) |
Issued | 10 years, 6 months ago (Feb. 23, 2015) |
Published | 10 years, 6 months ago (Feb. 23, 2015) |
Published Online | 10 years, 6 months ago (Feb. 23, 2015) |
Published Print | 10 years, 6 months ago (Feb. 23, 2015) |
Funders
2
Ministerio de Economía y Competitividad
10.13039/501100003329
Ministerio de Economía y CompetitividadRegion: Europe
gov (National government)
Labels
3
- Ministry of Economy and Competitiveness
- MINECO
- MEC
Awards
1
- MAT2013-41099-R
Paul Scherrer Institut
10.13039/501100004219
Region: Europe
gov (Local government)
Labels
3
- Paul Scherrer Institute
- Institut Paul Scherrer
- PSI
@article{Serrano_S_nchez_2015, title={Record Seebeck coefficient and extremely low thermal conductivity in nanostructured SnSe}, volume={106}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4913260}, DOI={10.1063/1.4913260}, number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Serrano-Sánchez, F. and Gharsallah, M. and Nemes, N. M. and Mompean, F. J. and Martínez, J. L. and Alonso, J. A.}, year={2015}, month=feb }