Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4726053
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- University of Helsinki
- Academy of Finland
- CSC Finland
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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. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4726053]
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