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Enhanced thermoelectric performance in the very low thermal conductivity Ag_2Se_(0.5)Te_(0.5)

Drymiotis, Fivos and Day, Tristan W. and Brown, David R. and Heinz, Nicholas A. and Snyder, G. Jeffrey (2013) Enhanced thermoelectric performance in the very low thermal conductivity Ag_2Se_(0.5)Te_(0.5). Applied Physics Letters, 103 (14). Art. No. 143906. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:20131107-154735120

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Abstract

In this letter, we report the high-temperature thermoelectric properties of Ag_2Se_(0.5)Te_(0.5). We find that this particular composition displays very low thermal conductivity and competitive thermoelectric performance. Specifically, in the temperature region 520 K ≤ T ≤ 620 K, we observe non-hysteretic behavior between the heating and cooling curves and zT values ranging from 1.2 to 0.8. Higher zT values are observed at lower temperatures on cooling. Our results suggest that this alloy is conducive to high thermoelectric performance in the intermediate temperature range, and thus deserves further investigation.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.4824353 DOIArticle
http://scitation.aip.org/content/aip/journal/apl/103/14/10.1063/1.4824353PublisherArticle
ORCID:
AuthorORCID
Snyder, G. Jeffrey0000-0003-1414-8682
Additional Information:© 2013 AIP Publishing LLC. Received 24 July 2013; accepted 22 September 2013; published online 3 October 2013. The authors would like to thank the U.S. Air Force Office of Scientific Research for supporting this work.
Group:Resnick Sustainability Institute
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific ResearchUNSPECIFIED
Record Number:CaltechAUTHORS:20131107-154735120
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20131107-154735120
Official Citation:Enhanced thermoelectric performance in the very low thermal conductivity Ag2Se0.5Te0.5 Fivos Drymiotis, Tristan W. Day, David R. Brown, Nicholas A. Heinz, and G. Jeffrey Snyder Applied Physics Letters 103, 143906 (2013); doi: 10.1063/1.4824353
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42325
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:08 Nov 2013 20:26
Last Modified:18 Nov 2016 17:50

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