Characterization of graphene samples produced using melamine as the exfoliating agent. (a) XRD, (b) Raman Spectra with deconvolution of 2D band, (c) TEM images of G/M/D dispersion in water showing sheet like structure, (d) SAED pattern of the graphene sheet, (e) TEM images of G/M/D dispersion in water showing large graphene flakes with wrinkles, (f) SAED pattern of the edge of the graphene flakes and (g) Graphene fringes observed in G/M/D sample with varying number of layers (3–5). (A colour version of this figure can be viewed online.)