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Self-Assembled Nanometer Lamellae of Thermoelectric PbTe and Sb_2Te_3 with Epitaxy-like Interfaces

Ikeda, Teruyuki and Collins, Lauren A. and Ravi, Vilupanur A. and Gascoin, Franck S. and Haile, Sossina M. and Snyder, G. Jeffrey (2007) Self-Assembled Nanometer Lamellae of Thermoelectric PbTe and Sb_2Te_3 with Epitaxy-like Interfaces. Chemistry of Materials, 19 (4). pp. 763-767. ISSN 0897-4756. https://resolver.caltech.edu/CaltechAUTHORS:20170203-100737040

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Abstract

Utilizing the decomposition of metastable Pb_2Sb_6Te_(11) into PbTe and Sb_2Te_3, we produced a layered (lamellar) microstructure of PbTe and Sb_2Te_3 in which the interlamellar spacing can be controlled by the temperature and time of the decomposition process. Adjacent PbTe and Sb_2Te_3 lamellae are crystallographically oriented, indicating high-quality epitaxy-like interfaces. Average lamellar spacings as small as 180 nm are observed, corresponding to a PbTe layer thickness of 40 nm. These nanoscale multilayers, formed by bulk processing, resemble thin-film superlattice thermoelectric materials, which have shown exceptionally high thermoelectric efficiency.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/cm062121pDOIArticle
http://pubs.acs.org/doi/abs/10.1021/cm062121pPublisherArticle
ORCID:
AuthorORCID
Ikeda, Teruyuki0000-0001-7076-6958
Haile, Sossina M.0000-0002-5293-6252
Snyder, G. Jeffrey0000-0003-1414-8682
Additional Information:© 2007 American Chemical Society. Received 7 September 2006. Published online 17 January 2007. Published in print 1 February 2007. We thank the Office of Naval Research (Grant N000140610364), the National Science Foundation through Caltech's Center for the Science and Engineering of Materials (CSEM), and the JPLUS program (LC) for their funding of this work.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N000140610364
NSFUNSPECIFIED
Jet Propulsion Laboratory Undergraduate Scholars (JPLUS)UNSPECIFIED
Issue or Number:4
Record Number:CaltechAUTHORS:20170203-100737040
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170203-100737040
Official Citation:Self-Assembled Nanometer Lamellae of Thermoelectric PbTe and Sb2Te3 with Epitaxy-like Interfaces Teruyuki Ikeda, Lauren A. Collins, Vilupanur A. Ravi, Franck S. Gascoin, Sossina M. Haile, and G. Jeffrey Snyder Chemistry of Materials 2007 19 (4), 763-767 DOI: 10.1021/cm062121p
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74015
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:03 Feb 2017 20:37
Last Modified:03 Oct 2019 16:33

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