Published January 7, 2014
| Version Published
Journal Article
Open
Thermoelectric alloys between PbSe and PbS with effective thermal conductivity reduction and high figure of merit
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1.
California Institute of Technology
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2.
Southeast University
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3.
Chongqing University of Science and Technology
Abstract
The n-type alloys between PbSe and PbS are studied. The effect of alloy composition on transport properties is evaluated and the results are interpreted with theories based on random atomic site substitution. The alloying in PbSe_(1−x)S_x brings thermal conductivity reduction, carrier mobility reduction as well as change of effective mass. When all these factors are evaluated, both experimentally and theoretically, the optimized thermoelectric performance is found to change gradually with alloy composition. High zT can be found in all PbSe_(1−x)S_x alloys. The possibility of achieving significant improvement of zT through alloying is also discussed.
Additional Information
© 2014 Royal Society of Chemistry. Received 28th November 2013. Accepted 24th December 2013. First published online 03 Jan 2014. H. W. and G. J. S. would like to thank AFOSR MURI FA9550-10-1-0533 and NASA/JPL for funding. X. C. thanks the Natural Science Foundation Project of Chongqing CSTC (project no. cstc2011jjA50011) and Research Foundation of Chongqing University of Science & Technology (project no. CK2010Z08) for funding.Attached Files
Published - c3ta14929c.pdf
Files
c3ta14929c.pdf
Additional details
Identifiers
- Eprint ID
- 44494
- Resolver ID
- CaltechAUTHORS:20140325-102121404
Funding
- AFOSR MURI
- FA9550-10-1-0533
- NASA/JPL
- NSF Project of Chongqing CSTC
- cstc2011jjA50011
- Research Foundation of Chongqing University of Science & Technology
- CK2010Z08
Dates
- Created
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2014-03-25Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field