Graphene re-knits its holes
Autor: | Zan, Recep, Ramasse, Quentin M., Bangert, Ursel, Novoselov, Konstantin S. |
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Rok vydání: | 2012 |
Předmět: | |
Druh dokumentu: | Working Paper |
DOI: | 10.1021/nl300985q |
Popis: | Nano-holes, etched under an electron beam at room temperature in singlelayer graphene sheets as a result of their interaction with metalimpurities, are shown to heal spontaneously by filling up with either non-hexagon, graphene-like, or perfect hexagon 2D structures. Scanning transmission electron microscopy was employed to capture the healing process and study atom-by-atom the re-grown structure. A combination of these nano-scale etching and re-knitting processes could lead to new graphene tailoring approaches. Comment: 11 pages, 4 figures |
Databáze: | arXiv |
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