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Beilstein J. Nanotechnol. 2022, 13, 63–73, doi:10.3762/bjnano.13.4
Figure 1: Coarse grained model for polyvinyl alcohol (PVA, C2H4O)x). Red atoms are oxygen, dark gray are carb...
Figure 2: Snapshot of the simulation after the deposition of graphene on the polymer and before indentation a...
Figure 3: (a) Top view and (b) side view of the simulation. The positions of the fixed graphene carbon atoms ...
Figure 4: Density of the substrate through the full length of the simulation box (polymer only), (a) before d...
Figure 5: The penetration depth versus time for long indentations, and for the sliding process, for a tip wit...
Figure 6: Indentation depth as a function of the normal load for the flat graphene specimen with tip radii r ...
Figure 7: Indentation depth on flat graphene and crumpled graphene layers for different normal loads and a ti...
Figure 8: Density maps of the polymer for (a) the flat graphene sheet with r = 50 Å and Fn = 3.2 nN, (b) the ...
Figure 9: Snapshots of the simulation during sliding for a tip radius of 50 Å and a load of 102 nN (64 eV/Å) ...
Figure 10: Frictional force as a function of the position of the support on the flat graphene specimen for (a)...
Figure 11: Average frictional force measured between support displacements of 50 and 100 Å as function of the ...
Figure 12: Frictional force versus the position of the support for a tip of radius r = 50 Å on the crumpled gr...
Figure 13: Average frictional force measured between 50 and 100 Å of the support displacement versus load appl...
Figure 14: Average displacement of the monomers below the tip during sliding for (a) the case without graphene...