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Ripple edge engineering of graphene nanoribbons

Lookup NU author(s): Philipp Wagner, Professor Patrick Briddon


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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 functionalization, 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.

Publication metadata

Author(s): Wagner P, Ewels CP, Ivanovskaya VV, Briddon PR, Pateau A, Humbert B

Publication type: Article

Publication status: Published

Journal: Physical Review B

Year: 2011

Volume: 84

Issue: 13

Print publication date: 21/10/2011

ISSN (print): 1098-0121

ISSN (electronic): 1550-235X

Publisher: American Physical Society


DOI: 10.1103/PhysRevB.84.134110


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Funder referenceFunder name
ANR-09-NANO-016-01French National Agency (ANR)
P3N2009French National Agency (ANR)