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Thermoelectric performance of SnTe with ZnO carrier compensation, energy filtering, and multiscale phonon scattering.
- Source :
-
Journal of the American Ceramic Society . Dec2017, Vol. 100 Issue 12, p5723-5730. 8p. 1 Color Photograph, 2 Black and White Photographs, 5 Graphs. - Publication Year :
- 2017
-
Abstract
- In this work, the thermoelectric properties of SnTe have been regulated synergistically by introduction of n-type ZnO nanoinclusions. On one hand, the excessive holes in SnTe matrix were compensated properly by n-type ZnO, and the Seebeck coefficient has been improved greatly due to the carrier energy filtering effect by a large quantity of ZnO-SnTe hetero-junction interface barriers; On the other hand, the thermal conductivity gets reduced by the enhanced phonon scattering from multiscale hierarchical architectures. Consequently, a maximum ZT of ~0.9 at 873K has been obtained in the 0.8 wt% sample, which enhances by 112% in comparison with the nanoinclusion-free sample. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00027820
- Volume :
- 100
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of the American Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 125717339
- Full Text :
- https://doi.org/10.1111/jace.15088