Figure 2
From: Surface stress of graphene layers supported on soft substrate
Surface profiles near the contact line.
(a,b) are the deformation profiles induced by a glycerol droplet on a bare silicone substrate of PDMS and a substrate covered by one layer of graphene (1LG), respectively. The cusp regions of the substrates with different thicknesses (shown in different colours) are aligned to the origin point (z = 0). (c,d) are the close-ups of the cusp regions in (a,b), with the dashed lines showing the extracted cusp angles.
