Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 25, Issue 39, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/25/39/395303
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Funding
- Academy of Finland
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Although sheets of layered van der Waals solids offer great opportunities to custom-design nanomaterial properties, their weak interlayer adhesion challenges structural stability against mechanical deformation. Here, bending-induced delamination of multilayer sheets is investigated by molecular dynamics simulations, using graphene as an archetypal van der Waals solid. The simulations show that delamination of a graphene sheet occurs when its radius of curvature decreases roughly below R-c = 5.3 nm x (number of layers)(3/2) and that, as a rule, one-third of the layers get delaminated. These clear results are explained by a general and transparent model, a useful future reference for guiding the design of nanostructured van der Waals solids.
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