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American Chemical Society, Nano Letters, 7(11), p. 2689-2692, 2011

DOI: 10.1021/nl200928k

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Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene

Journal article published in 2011 by Tim J. Booth, Filippo Pizzocchero, Henrik Andersen, Thomas W. Hansen ORCID, Jakob B. Wagner ORCID, Joerg R. Jinschek, Rafal E. Dunin Borkowski, Ole Hansen ORCID, Peter Bøggild
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This paper is available in a repository.

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Abstract

We have observed a previously undescribed stepwise oxidation of mono- and few layer suspended graphene by silver nanoparticles in situ at subnanometer scale in an environmental transmission electron microscope. Over the range of 600-850 K, we observe crystallographically oriented channelling with rates in the range 0.01-1 nm/s and calculate an activation energy of 0.557 ± 0.016 eV. We present a discrete statistical model for this process and discuss the implications for accurate nanoscale patterning of nanoscale systems.