Facile Surfactant-Free Synthesis of p-Type SnSe Nanoplates with Exceptional Thermoelectric Power Factors

Han, Guang; Popuri, Srinivas R; Greer, Heather F; Bos, Jan-Willem G; Zhou, Wuzong; Knox, Andrew R; Montecucco, Andrea; Siviter, Jonathan; Man, Elena A; Macauley, Martin; others

Abstract

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.

Citation

Han, G., Popuri, S. R., Greer, H. F., Bos, J. G., Zhou, W., Knox, A. R., Montecucco, A., Siviter, J., Man, E. A., Macauley, M., & others. (2016). Facile Surfactant-Free Synthesis of p-Type SnSe Nanoplates with Exceptional Thermoelectric Power Factors. Angewandte Chemie International Edition, 55(22), 6433-6437. https://doi.org/10.1002/anie.201601420

• Journal Article Type: Article
• Acceptance Date: Mar 23, 2016
• Online Publication Date: Apr 20, 2016
• Publication Date: 2016-05
• Deposit Date: Dec 12, 2021
• Publicly Available Date: Dec 13, 2021
• Journal: Angewandte Chemie International Edition
• Print ISSN: 1433-7851
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 55
• Issue: 22
• Pages: 6433-6437
• DOI: https://doi.org/10.1002/anie.201601420
• Keywords: nanomaterials, structures, synthesis, thermoelectrics, tin selenide
• Public URL: http://researchrepository.napier.ac.uk/Output/2818328