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Nanostructuring graphene by dense elecetronic excitation

Ochedowski, O.; Lehtinen, O.; Kaiser, U.; Turchanin, A.; Ban-d'Etat, B; Lebius, H.; Karlušić, Marko; Jakšić, Milko; Schleberger, M. (2015) Nanostructuring graphene by dense elecetronic excitation. Nanotechnology, 26 . 465302/1-465302/10. ISSN 0957-4484

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The ability to manufacture tailored graphene nanostructures is a key factor to fully exploit its enormous technological potential. We have investigated nanostructures created in graphene by swift heavy ion induced folding. For our experiments, single layers of graphene exfoliated on various substrates and freestanding graphene have been irradiated and analyzed by atomic force and high resolution transmission electron microscopy as well as Raman spectroscopy. We show that the dense electronic excitation in the wake of the traversing ion yields characteristic nanostructures each of which may be fabricated by choosing the proper irradiation conditions. These nanostructures include unique morphologies such as closed bilayer edges with a given chirality or nanopores within supported as well as freestanding graphene. The length and orientation of the nanopore, and thus of the associated closed bilayer edge, may be simply controlled by the direction of the incoming ion beam. In freestanding graphene, swift heavy ion irradiation induces extremely small openings, offering the possibility to perforate graphene membranes in a controlled way.

Item Type: Article
Uncontrolled Keywords: graphene; swift heavy ion; folding
Subjects: NATURAL SCIENCES > Physics > Condensed Matter Physics
Divisions: Division of Experimental Physics
Division of Materials Physics
Project titleProject leaderProject codeProject type
MeV Ion Beam Induced Changes in Crystaline Materials (Promjene u kristaliničnim materijalima izazvane ionskim snopovima MeV-skih energija)-MIOBICCStjepko FazinićIP-11-2013-8127HRZZ
Centre of Excellence for Advanced Materials and Sensing DevicesMilko JakšićUNSPECIFIEDCEMS
Depositing User: Marko Karlušić
Date Deposited: 02 Nov 2015 10:07
DOI: 10.1088/0957-4484/26/46/465302

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