Fig. 5

SEM at different magnifications of intercalated graphite (a), expanded graphite (b), and graphene (c). TEM of laser expanded graphite along with its SAED, LEG (d) Graphene (e) HRTEM of graphene (f) along with FFT. (g) AFM image of the graphene flakes. (h,i) Analysis of the thickness of the flakes in two different regions.