Graphene reknits its holes

Recep Zan, Quentin M. Ramasse, Ursel Bangert, Konstantin S. Novoselov

Research output: Contribution to journalArticlepeer-review

Abstract

Nanoholes, etched under an electron beam at room temperature in single-layer graphene sheets as a result of their interaction with metal impurities, are shown to heal spontaneously by filling up with either nonhexagon, graphene-like, or perfect hexagon 2D structures. Scanning transmission electron microscopy was employed to capture the healing process and study atom-by-atom the regrown structure. A combination of these nanoscale etching and reknitting processes could lead to new graphene tailoring approaches.

Original languageEnglish
Pages (from-to)3936-3940
Number of pages5
JournalNano Letters
Volume12
Issue number8
DOIs
Publication statusPublished - 8 Aug 2012
Externally publishedYes

Keywords

  • 2D materials
  • etching
  • Graphene
  • scanning transmission electron microscopy
  • self-healing

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