Graphene ripples generated by grain boundaries in highly ordered pyrolytic graphite
Capasso, Andrea, Placidi, E., Zhan, Haifei, Perfetto, Enrico, Bell, John M., Gu, YuanTong, & Motta, Nunzio (2014) Graphene ripples generated by grain boundaries in highly ordered pyrolytic graphite. Carbon, 68, pp. 330-336.
Atomic scale periodic ripples that extend for several nanometers on the surface of adjacent graphitic grains have been observed for the first time on highly ordered pyrolitic graphite by UHV-STM. The ripples emanate from a grain boundary, and are explained in terms of a mechanical deformation due to the elastic strain accumulated along the GB, which is relieved out-of-plane in the topmost graphene layer. We present a molecular dynamics model that accounts for the formation of similar ripples as result of the lattice mismatch induced by two different grain orientations.
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|Item Type:||Journal Article|
|Keywords:||Graphene, Ripples, Surface corrugation, UHV-STM, Grain boundaries, HOPG|
|Subjects:||Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CONDENSED MATTER PHYSICS (020400) > Surfaces and Structural Properties of Condensed Matter (020406)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanoscale Characterisation (100712)
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 Elsevier Ltd.|
|Copyright Statement:||NOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Carbon, [Volume 68, (March 2014)] DOI: 10.1016/j.carbon.2013.11.009|
|Deposited On:||01 Dec 2013 23:30|
|Last Modified:||02 Mar 2016 09:37|
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