101765.fig.004a
(a)
101765.fig.004b
(b)
101765.fig.004c
(c)
101765.fig.004d
(d)
Figure 4: The 2D peaks of graphene M1 (a) and M2 (b) after each annealing step; the FWHM (black) of 2D peak and the intensity ratio (red) of the 2D peak and G peak for graphene M1 (c) and M2 (d) (colors online).