Ion irradiation tolerance of graphene as studied by atomistic simulations

Autor(en)

E. H. Ahlgren, Jani Kotakoski, Ossi Lehtinen, A. Krasheninnikov

Abstrakt

As impermeable to gas molecules and at the same time transparent to high-energy ions, graphene has been suggested as a window material for separating a high-vacuum ion beam system from targets kept at ambient conditions. However, accumulation of irradiation-induced damage in the graphene membrane may give rise to its mechanical failure. Using atomistic simulations, we demonstrate that irradiated graphene even with a high vacancy concentration does not show signs of such instability, indicating a considerable robustness of graphene windows. We further show that upper and lower estimates for the irradiation damage in graphene can be set using a simple model.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

University of Helsinki

Journal

Applied Physics Letters

Band

100

Anzahl der Seiten

4

ISSN

0003-6951

Publikationsdatum

2012

Peer-reviewed

Ja

ÖFOS 2012

210006 Nanotechnologie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/f0a88f8b-6b87-4284-a60c-e461b475326f