Facile surfactant-free synthesis of p-type SnSe nanoplates with exceptional thermoelectric power factors

Han, G. et al. (2016) Facile surfactant-free synthesis of p-type SnSe nanoplates with exceptional thermoelectric power factors. Angewandte Chemie (International Edition), 55(22), pp. 6433-6437. (doi: 10.1002/anie.201601420) (PMID:27094703)

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A surfactant-free solution methodology, simply using water as a solvent, has been developed for the straightforward synthesis of single-phase orthorhombic SnSe nanoplates in gram quantities. Individual nanoplates are composed of {100} surfaces with {011} edge facets. Hot-pressed nanostructured compacts (Eg≈0.85 eV) exhibit excellent electrical conductivity and thermoelectric power factors (S2σ) at 550 K. S2σ values are 8-fold higher than equivalent materials prepared using citric acid as a structure-directing agent, and electrical properties are comparable to the best-performing, extrinsically doped p-type polycrystalline tin selenides. The method offers an energy-efficient, rapid route to p-type SnSe nanostructures.

Item Type:Articles
Additional Information:This work was financially supported by the EPSRC (EP/K022156/1). SRP and JWGB acknowledge the Leverhulme Trust RPG 2012-576.
Glasgow Author(s) Enlighten ID:Knox, Professor Andrew and Siviter, Dr Jonathan and Man, Ms Elena Anamaria and Li, Dr Wenguang and Montecucco, Dr Andrea and Macauley, Dr Martin and Han, Dr Guang and Paul, Professor Douglas and Paul, Professor Manosh and Gregory, Professor Duncan
Authors: Han, G., Popuri, S. R., Greer, H. F., Bos, J.-W. G., Zhou, W., Knox, A. R., Montecucco, A., Siviter, J., Man, E. A., Macauley, M., Paul, D. J., Li, W.-g., Paul, M. C., Gao, M., Sweet, T., Freer, R., Azough, F., Baig, H., Sellami, N., Mallick, T. K., 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
College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Angewandte Chemie (International Edition)
Publisher:Wiley-VCH Verlag GmbH & Co. KGaA
ISSN (Online):1521-3773
Published Online:20 April 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Angewandte Chemie (International Edition) 55(22): 6433-6437
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