Unzipping and folding of graphene by swift heavy ions

We show that graphene on a dielectric substrate sustains major modifications if irradiated with swift heavy ions under oblique angles. Due to a combination of defect creation in the graphene layer and hillock creation in the substrate, graphene is split and folded along the ion track yielding double...

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Bibliographic Details
Published in:Applied physics letters 2011-03, Vol.98 (10), p.103103-103103-3
Main Authors: Akcöltekin, S., Bukowska, H., Peters, T., Osmani, O., Monnet, I., Alzaher, I., d'Etat, B. Ban, Lebius, H., Schleberger, M.
Format: Article
Language:English
Subjects:
BEAMS
CARBON
CHARGED PARTICLES
Condensed Matter
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEFECTS
DIELECTRIC MATERIALS
ELEMENTS
HARDENING
HARDNESS
HEAVY IONS
HONEYCOMB STRUCTURES
ION BEAMS
IONS
IRRADIATION
LAYERS
MATERIALS
Materials Science
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MODIFICATIONS
NANOSTRUCTURES
NONMETALS
PHYSICAL RADIATION EFFECTS
Physics
RADIATION EFFECTS
RADIATION HARDENING
SUBSTRATES
SURFACES
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Summary:We show that graphene on a dielectric substrate sustains major modifications if irradiated with swift heavy ions under oblique angles. Due to a combination of defect creation in the graphene layer and hillock creation in the substrate, graphene is split and folded along the ion track yielding double layer nanoribbons. The folded parts are up to several 100 nm in length. Our results indicate that the radiation hardness of graphene devices is questionable but also open up a new way of introducing extended low-dimensional defects in a controlled way.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3559619