Graphene reknits its holes

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

doi:10.1021/nl300985q

Graphene reknits its holes

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

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	3936-3940
Number of pages	5
Journal	Nano Letters
Volume	12
Issue number	8
DOIs	https://doi.org/10.1021/nl300985q
Publication status	Published - 8 Aug 2012
Externally published	Yes

Keywords

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

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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.",

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AU - Bangert, Ursel

AU - Novoselov, Konstantin S.

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N2 - 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.

AB - 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.

KW - 2D materials

KW - Graphene

KW - etching

KW - scanning transmission electron microscopy

KW - self-healing

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U2 - 10.1021/nl300985q

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M3 - Article

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JO - Nano Letters

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Graphene reknits its holes

Abstract

Keywords

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