Programmable Sub-nanometer Sculpting of Graphene with Electron Beams

Electron beams in transmission electron microscopes are very attractive to engineer and pattern graphene toward all-carbon device fabrication. The use of condensed beams typically used for sequential raster imaging is particularly exciting since they potentially provide high degrees of precision. Ho...

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Bibliographic Details
Published in:ACS nano 2012-11, Vol.6 (11), p.10327-10334
Main Authors: Börrnert, Felix, Fu, Lei, Gorantla, Sandeep, Knupfer, Martin, Büchner, Bernd, Rümmeli, Mark H
Format: Article
Language:English
Subjects:
Beams (radiation)
Carbon
Condensing
Crystallization - methods
Deposition
Devices
Electron beams
Electron microscopes
Electrons
Graphene
Graphite - chemistry
Graphite - radiation effects
Macromolecular Substances - chemistry
Macromolecular Substances - radiation effects
Materials Testing
Molecular Conformation - radiation effects
Molecular Imprinting - methods
Nanostructure
Nanostructures - chemistry
Nanostructures - radiation effects
Nanostructures - ultrastructure
Particle Size
Surface Properties - radiation effects
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Summary:Electron beams in transmission electron microscopes are very attractive to engineer and pattern graphene toward all-carbon device fabrication. The use of condensed beams typically used for sequential raster imaging is particularly exciting since they potentially provide high degrees of precision. However, technical difficulties, such as the formation of electron beam induced deposits on sample surfaces, have hindered the development of this technique. We demonstrate how one can successfully use a condensed electron beam, either with or without C s correction, to structure graphene with sub-nanometer precision in a programmable manner. We further demonstrate the potential of the developed technique by combining it with an established route to engineer graphene nanoribbons to single-atom carbon chains.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn304256a