Graphene Reknits Its Holes
Graphene Reknits Its Holes
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DOI：
10.1021/nl300985q
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发表时间：
2012-08-01
期刊：
影响因子：
10.8
通讯作者：
Novoselov, Konstantin S.
中科院分区：
文献类型：
--
作者：
Zan, Recep;Ramasse, Quentin M.;Novoselov, Konstantin S.
纳米孔，在电子束下在室温下在单层石墨烯片中蚀刻，由于它们与金属杂质的相互作用，被证明可以通过填充非六边形，石墨烯状或完美的六边形2D结构而自发愈合。扫描透射电子显微镜被用来捕捉愈合过程，并逐个原子地研究再生长的结构。这些纳米级蚀刻和重新编织过程的组合可能会导致新的石墨烯定制方法。
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.