Graphene reknits its holes.
basic_science · Level V
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- Record sourced from PubMed, PMID 22765872.
- Also identified by DOI 10.1021/nl300985q.
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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.