| Institution: | 1. WestCHEM, School of Chemistry, University of Glasgow, Glasgow, UK;2. Institute of Chemical Sciences and Centre for Advanced Energy Storage & Recovery, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, UK;3. EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, UK;4. School of Engineering, University of Glasgow, Glasgow, UK;5. School of Engineering, Cardiff University, Cardiff, UK;6. Materials Science Centre, School of Materials, University of Manchester, Manchester, UK;7. Environment and Sustainability Institute, University of Exeter, Penryn, UK |
| 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. |
