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Few‐Layer Antimonene by Liquid‐Phase Exfoliation |
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| Authors: | Carlos Gibaja David Rodriguez‐San‐Miguel Pablo Ares Prof Julio Gómez‐Herrero Dr Maria Varela Dr Roland Gillen Prof Janina Maultzsch Dr Frank Hauke Prof Andreas Hirsch Dr Gonzalo Abellán Dr Félix Zamora |
| Institution: | 1. Departamento de Química Inorgánica, Universidad Autónoma de Madrid, Madrid, Spain;2. Instituto Madrile?o de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), Cantoblanco, Madrid, Spain;3. Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid, Spain;4. Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid, Spain;5. Facultad de CC. Físicas & Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain;6. Institut für Festk?rperphysik, Technische, Universit?t Berlin, Berlin, Germany;7. Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Erlangen, Germany;8. Institute of Advanced Materials and Processes (ZMP), Dr.-Mack-Strasse 81, 90762 Fürth, Germany |
| Abstract: | We report on a fast and simple method to produce highly stable isopropanol/water (4:1) suspensions of few‐layer antimonene by liquid‐phase exfoliation of antimony crystals in a process that is assisted by sonication but does not require the addition of any surfactant. This straightforward method generates dispersions of few‐layer antimonene suitable for on‐surface isolation. Analysis by atomic force microscopy, scanning transmission electron microscopy, and electron energy loss spectroscopy confirmed the formation of high‐quality few‐layer antimonene nanosheets with large lateral dimensions. These nanolayers are extremely stable under ambient conditions. Their Raman signals are strongly thickness‐dependent, which was rationalized by means of density functional theory calculations. |
| Keywords: | antimonene atomic force microscopy liquid-phase exfoliation Raman spectroscopy two-dimensional materials |