Liquid exfoliation of solvent-stabilized few-layer black phosphorus for applications beyond electronics

Hanlon, Damien; Backes, Claudia; Doherty, Evie; Cucinotta, Clotilde S.; Berner, Nina C.; Boland, Conor S.; Lee, Kangho; Harvey, Andrew; Lynch, Peter J.; Gholamvand, Zahra; Zhang, Saifeng; Wang, Kangpeng; Moynihan, Glenn; Pokle, Anuj; Ramasse, Quentin M.; McEvoy, Niall; Blau, Werner J.; Wang, Jun; Abellán, Gonzalo; Hauke, Frank; Hirsch, Andreas; Sanvito, Stefano; O’Regan, David D.; Duesberg, Georg S.; Nicolosi, Valeria; Coleman, Jonathan N.

doi:10.1038/ncomms9563

articleNature CommunicationsOct 15, 2015GOLD OA

Liquid exfoliation of solvent-stabilized few-layer black phosphorus for applications beyond electronics

DHDamien Hanlon CBClaudia Backes EDEvie Doherty CSClotilde S. Cucinotta NCNina C. Berner

Trinity College Dublin · Advanced Materials and BioEngineering Research · +5 more institutions

PubMed

Indexed inarxivcrossrefdoajpubmed

Abstract

Few-layer black phosphorus (BP) is a new two-dimensional material which is of great interest for applications, mainly in electronics. However, its lack of environmental stability severely limits its synthesis and processing. Here we demonstrate that high-quality, few-layer BP nanosheets, with controllable size and observable photoluminescence, can be produced in large quantities by liquid phase exfoliation under ambient conditions in solvents such as N-cyclohexyl-2-pyrrolidone (CHP). Nanosheets are surprisingly stable in CHP, probably due to the solvation shell protecting the nanosheets from reacting with water or oxygen. Experiments, supported by simulations, show reactions to occur only at the nanosheet…

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Topics

Keywords

Exfoliation joint
Nanosheet
Materials science
Chemical engineering
Layer (electronics)
Solvation
Black phosphorus
Graphene

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