Large-scale surfactant-free synthesis of p-type SnTe nanoparticles for thermoelectric applications

Han, G., Zhang, R., Popuri, S. R., Greer, H. F., Reece, M. J., Bos, J.-W. G., Zhou, W., Knox, A. R. and Gregory, D. H. (2017) Large-scale surfactant-free synthesis of p-type SnTe nanoparticles for thermoelectric applications. Materials, 10(3), 233. (doi: 10.3390/ma10030233)

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Abstract

A facile one-pot aqueous solution method has been developed for the fast and straightforward synthesis of SnTe nanoparticles in more than ten gram quantities per batch. The synthesis involves boiling an alkaline Na2SnO2 solution and a NaHTe solution for short time scales, in which the NaOH concentration and reaction duration play vital roles in controlling the phase purity and particle size, respectively. Spark plasma sintering of the SnTe nanoparticles produces nanostructured compacts that have a comparable thermoelectric performance to bulk counterparts synthesised by more time- and energy-intensive methods. This approach, combining an energy-efficient, surfactant-free solution synthesis with spark plasma sintering, provides a simple, rapid, and inexpensive route to p-type SnTe nanostructured materials.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Knox, Professor Andrew and Han, Dr Guang and Gregory, Professor Duncan
Authors: Han, G., Zhang, R., Popuri, S. R., Greer, H. F., Reece, M. J., Bos, J.-W. G., Zhou, W., Knox, A. R., and Gregory, D. H.
College/School:College of Science and Engineering > School of Chemistry
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Materials
Publisher:MDPI
ISSN:1996-1944
ISSN (Online):1996-1944
Published Online:26 February 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Materials 10(3):233
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
614241Scalable Solar Thermoelectrics and Photovaltaics (SUNTRAP)Andrew KnoxEngineering & Physical Sciences Research Council (EPSRC)EP/K022156/1ENG - ENGINEERING ELECTRONICS & NANO ENG
748501EPSRC-GCRF ISF 2016: Graphene oxide nanocomposites for energy conversion and storageDuncan GregoryEngineering & Physical Sciences Research Council (EPSRC)EP/P510968/1CHEM - CHEMISTRY