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Dipanjan Sen, Kostya S. Novoselov, Pedro M. Reis and Markus J. Buehler Tearing Graphene Sheets From Adhesive Substrates Produces Tapered Nanoribbons Small 6

Version of Record online: 6 MAY 2010 | DOI: 10.1002/smll.201000097

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Tearing of graphene layers from adhesive substrates, such as SiO2 and poly(methyl methacrylate), leads to the formation of tapered ribbons, the angle of tapering increasing with adhesion strength. Being a truly two-dimensional material, the tearing mechanics are governed by the in-plane stretching energy of the graphene sheet, deviating from the behavior of macroscopic thin films.

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