Physics – Condensed Matter – Materials Science
Scientific paper
2011-07-11
Phys. Rev. B 84, 134110 (2011)
Physics
Condensed Matter
Materials Science
Supplementary Materials available
Scientific paper
10.1103/PhysRevB.84.134110
It is now possible to produce graphene nanoribbons (GNRs) with atomically defined widths. GNRs offer many opportunities for electronic devices and composites, if it is possible to establish the link between edge structure and functionalisation, and resultant GNR properties. Switching hydrogen edge termination to larger more complex functional groups such as hydroxyls or thiols induces strain at the ribbon edge. However we show that this strain is then relieved via the formation of static out-of-plane ripples. The resultant ribbons have a significantly reduced Young's Modulus which varies as a function of ribbon width, modified band gaps, as well as heterogeneous chemical reactivity along the edge. Rather than being the exception, such static edge ripples are likely on the majority of functionalized graphene ribbon edges.
Briddon Patrick R.
Ewels Christopher P.
Humbert Bernard
Ivanovskaya Viktoriya V.
Pateau Amand
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