101765.fig.003a
(a)
101765.fig.003b
(b)
Figure 3: AFM topographic images of the graphene M2 after annealing in N2/H2 at 300°C (a) and 400°C (b); left part of the graphene M2 is monolayer (ML) and the right part is bilayer (BL). Scale bars are 300 nm in length (colors online).