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Nanostructuring in β-Zn_4Sb_3 with variable starting Zn compositions

Rauwel, Protima and Løvvik, Ole Martin and Rauwel, Erwan and Toberer, Eric S. and Snyder, G. Jeffrey and Taftø, Johan (2011) Nanostructuring in β-Zn_4Sb_3 with variable starting Zn compositions. Physica Status Solidi A, 208 (7). pp. 1652-1657. ISSN 1862-6300. https://resolver.caltech.edu/CaltechAUTHORS:20110902-083247718

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Abstract

Thermoelectric Zn_(4−δ)Sb_3 samples with varying Zn concentrations were synthesized. The morphology, along with planar and extended defects was studied using transmission electron microscopy (TEM). For all the Zn concentrations, nanostructuring was observed. Depending on the Zn concentration, two different types of nanostructures were observed: nanovoids and nanograins. Three samples with Zn:Sb ratios of 1.28, 1.30, and 1.36 were studied. The presence of the secondary phases was discussed in terms of the phase diagram. Density functional theory (DFT) calculations further elucidated the formation of secondary phases as a function of different Zn:Sb ratio.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/pssa.201026613 DOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1002/pssa.201026613/abstractPublisherUNSPECIFIED
ORCID:
AuthorORCID
Løvvik, Ole Martin0000-0002-4169-1544
Snyder, G. Jeffrey0000-0003-1414-8682
Additional Information:© 2011 Wiley-VCH Verlag GmbH & Co. Received 7 October 2010, revised 28 February 2011, accepted 7 March 2011. Article first published online: 31 Mar. 2011. Ole Bjørn Karlsen is thanked for fruitful discussions. The Norwegian Research Council and Marie Curie-PERG05-GA-2009-249243 are thanked for financial support.
Funders:
Funding AgencyGrant Number
Norwegian Research CouncilUNSPECIFIED
Marie CuriePERG05-GA-2009-249243
Subject Keywords:density functional theory, nanostructure, thermoelectric materials, transmission electron microscopy, Zn4, Sb3
Issue or Number:7
Record Number:CaltechAUTHORS:20110902-083247718
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110902-083247718
Official Citation:Rauwel, P., Løvvik, O. M., Rauwel, E., Toberer, E. S., Snyder, G. J. and Taftø, J. (2011), Nanostructuring in β-Zn4Sb3 with variable starting Zn compositions. physica status solidi (a), 208: 1652–1657. doi: 10.1002/pssa.201026613
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:25205
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:02 Sep 2011 19:43
Last Modified:09 Mar 2020 13:19

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