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

V. V. Ivanovskaya, P. Wagner, A. Zobelli, I. Suarez-Martinez, A. Yaya, C. P. Ewels

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

11 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationCarbon Nanostructures
PublisherSpringer International Publishing
Pages75-85
Number of pages11
Edition9783642206436
DOIs
Publication statusPublished - 2012
Externally publishedYes

Publication series

NameCarbon Nanostructures
Number9783642206436
Volume0
ISSN (Print)2191-3005
ISSN (Electronic)2191-3013

Keywords

  • Graphene layer
  • Graphene nanoribbon
  • Graphene plane
  • High resolution transmission electron microscopy
  • High resolution transmission electron microscopy

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