title: Few-Layer Antimonene by Liquid-Phase Exfoliation.
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.
authors.affiliation: Departamento de Química Inorgánica, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Gibaja
authors.affiliation: Departamento de Química Inorgánica, Universidad Autónoma de Madrid, 28049, Madrid, Spain.|Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), Cantoblanco, 28049, Madrid, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Rodriguez-San-Miguel
authors.affiliation: Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Ares
authors.affiliation: Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Madrid, Spain.|Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain.
authors.forename: Julio
authors.initials: J
authors.lastname: Gómez-Herrero
authors.affiliation: Facultad de CC. Físicas & Instituto Pluridisciplinar, Universidad Complutense de Madrid, 28040, Madrid, Spain.
authors.forename: Maria
authors.initials: M
authors.lastname: Varela
authors.affiliation: Institut für Festkörperphysik, Technische, Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany.
authors.forename: Roland
authors.initials: R
authors.lastname: Gillen
authors.affiliation: Institut für Festkörperphysik, Technische, Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany.
authors.forename: Janina
authors.initials: J
authors.lastname: Maultzsch
authors.affiliation: Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany.|Institute of Advanced Materials and Processes (ZMP), Dr.-Mack-Strasse 81, 90762 Fürth, Germany.
authors.forename: Frank
authors.initials: F
authors.lastname: Hauke
authors.affiliation: Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany.|Institute of Advanced Materials and Processes (ZMP), Dr.-Mack-Strasse 81, 90762 Fürth, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Hirsch
authors.affiliation: Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany. gonzalo.abellan@fau.de.|Institute of Advanced Materials and Processes (ZMP), Dr.-Mack-Strasse 81, 90762 Fürth, Germany. gonzalo.abellan@fau.de.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Abellán
authors.affiliation: Departamento de Química Inorgánica, Universidad Autónoma de Madrid, 28049, Madrid, Spain. felix.zamora@uam.es.|Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), Cantoblanco, 28049, Madrid, Spain. felix.zamora@uam.es.|Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain. felix.zamora@uam.es.
authors.forename: Félix
authors.initials: F
authors.lastname: Zamora
keywords: Raman spectroscopy; antimonene; atomic force microscopy; liquid-phase exfoliation; two-dimensional materials