Journal
SMALL METHODS
Volume 1, Issue 12, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.201700260
Keywords
2D Materials; black phosphorus; liquid-phase exfoliation; microwave synthesis
Funding
- Australian Research Council Discovery Program [DP150101354, DP160101301]
- Australian Government
- Pawsey Supercomputing Centre - Australian Government
- Government of Western Australia
- Australian Research Council Discovery Program [DP150101354, DP160101301]
- Australian Government
- Pawsey Supercomputing Centre - Australian Government
- Government of Western Australia
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High-quality, few-layer black-phosphorus (BP) flakes are prepared in a common organic solvent with very short processing times using microwave-assisted liquid-phase exfoliation. A comprehensive range of analysis, combined with density-functional theory calculations, confirms that the product prepared using the microwave technique is few-layer BP with small- and large-area flakes. The suspended exfoliated BP sheets show excellent stability, while samples dispersed onto silicon from the suspensions exhibit low oxidation levels after several days in ambient conditions. This straightforward synthesis method is facile, efficient, and extremely fast, and does not involve use of any surfactant or ultrasonication steps and will facilitate future development of phosphorene research.
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