Figure 5.

(a and b) Top view (a) and side view (b) of the equilibrium structure of BTB molecule adsorbed on SLG/Cu(111). A large unit cell was used to avoid interactions among adjacent molecules. (c) Plane-averaged charge density difference Δρ(z) as a function of the vertical direction z after BTB adsorption on SLG (black curve) and on SLG/Cu(111) (red curve). The vertical solid lines indicate the positions of the Cu and SLG planes. The vertical dotted lines indicate the position of the BTB molecule on each surface.