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    Graphene edge structures: Folding, scrolling, tubing, rippling and twisting

    Access Status
    Fulltext not available
    Authors
    Ivanovskaya, V.
    Wagner, P.
    Zobelli, A.
    Suarez-Martinez, Irene
    Yaya, A.
    Ewels, C.
    Date
    2011
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ivanovskaya, V.V. and Wagner, P. and Zobelli, A. and Suarez-Martinez, I. and Yaya, A. and Ewels, C.P. 2011. Graphene edge structures: Folding, scrolling, tubing, rippling and twisting, in Ottaviano, L. and Morandi V. (ed), Proceedings of GraphITA 2011: A Multidisciplinary and Multisectorial European Workshop on Synthesis, Characterization and Technological Exploitation of Graphene, May 15-18 2012, pp. 75-85. L'Aquila, Italy: University of L’Aquila.
    Source Title
    Selected papers from the Workshop on Fundamentals and Applications of Graphene. Springer Berlin Heidelberg (February 2012)
    Source Conference
    GraphITA 2011, Carbon Nanostructures
    DOI
    10.1007/978-3-642-20644-3_10
    ISBN
    978-3-642-20644-3
    URI
    http://hdl.handle.net/20.500.11937/34164
    Collection
    • Curtin Research Publications
    Abstract

    Conventional three-dimensional crystal lattices are terminated by surfaces, which can demonstrate complex rebonding and rehybridisation, localised strain and dislocation formation. Two-dimensional crystal lattices, of which graphene is the archetype, are terminated by lines. The additional available dimension at such interfaces opens up a range of new topological interface possibilities. We show that graphene sheet edges can adopt a range of topological distortions depending on their nature. Rehybridisation, local bond reordering, chemical functionalisation with bulky, charged, or multi-functional groups can lead to edge buckling to relieve strain, folding, rolling and even tube formation. We discuss the topological possibilities at a two-dimensional graphene edge, and under what circumstances we expect different edge topologies to occur. Density functional calculations are used to explore in more depth different graphene edge types.

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