Efficient and fast synthesis of few-layer black phosphorus via microwave-assisted liquid-phase exfoliation

Munkhjargal Bat-Erdene, Munkhbayar Batmunkh, Cameron Shearer, Sherif Tawfik, Michael Ford, LePing Yu, Alexander Sibley, Jamie Quinton, Christopher Gibson, Joseph Shapter

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number1700260
Pages (from-to)1-6
Number of pages6
JournalSmall Methods
Volume1
Issue number12
DOIs
Publication statusPublished - 11 Dec 2017

Keywords

  • 2D Materials
  • black phosphorus
  • liquid-phase exfoliation
  • microwave synthesis

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