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

Guang Han, Ruizhi Zhang, Srinivas R. Popuri, Heather F. Greer, Michael J. Reece, Jan Willem G. Bos, Wuzong Zhou, Andrew R. Knox, Duncan H. Gregory

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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.

Original languageEnglish
Article number233
JournalMaterials
Volume10
Issue number3
DOIs
Publication statusPublished - Jan 1 2017

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

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