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Regensburg 2013 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 101: Graphene: Preparation and characterization II (O, jointly with HL, TT)

HL 101.1: Talk

Friday, March 15, 2013, 10:30–10:45, H17

Engineering of 2D-Nanomaterials by Swift Heavy Ion Irradiation — •Oliver Ochedowski, Hanna Bukowska, Sevilay Akcöltekin, and Marika Schleberger — Universität Duisburg-Essen, Lotharstrasse 1, 47057 Duisburg

Two dimensional (2D) nanomaterials prepared from layered crystal materials have attracted a great amount of interest in multiple fields of science. These nanomaterials can be metallic (e.g. graphene), semi-conducting (MoS2) or insulating (Mica) with properties often different from their bulk counterparts. Here, we will demonstrate how the morphology of several 2D-nanomaterials can be modified by swift heavy ion (SHI) irradiation in the MeV regime under glancing incidence angle. The induced modifications are investigated by means of atomic force microscopy. In the case of graphene we will show by Kelvin probe force microscopy how SHIs can be used to alter the electronic structure and induce doping of the graphene.

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