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Abstract
Carbon nanotubes and amorphous carbon have been introduced into a bismuth telluride matrix (0.15 and 0.30 wt.% ratio) to investigate the influence of the carbon on the composite’s thermoelectric properties. Composites with well-dispersed additives have been obtained by sonication and ball-milling methodology. Carbon nanotubes and an amorphous carbon addition led to a decrease in electric conductivity from 1120 S/cm to 77 S/cm. The absolute value of the Seebeck coefficient was found to be reduced, changing from −113 μV/K +2 μV/K, this is attributed to electron trapping by an amorphous carbon. For all investigated composites the phonon contribution of the thermal conductivity increased in comparison with a specimen without carbon additives.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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MATERIALS RESEARCH BULLETIN
no. 99,
pages 10 - 17,
ISSN: 0025-5408 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Trawiński B. J., Bochentyn B., Gostkowska N., Łapiński M. S., Miruszewski T., Kusz B.: Structure and thermoelectric properties of bismuth telluride—Carbon composites// MATERIALS RESEARCH BULLETIN. -Vol. 99, (2018), s.10-17
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.materresbull.2017.10.043
- Verified by:
- Gdańsk University of Technology
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