Preparation of Single- and Few-Layer Graphene Sheets Using Co Deposition on SiC Substrate
Figure 3
SEM images of (a) surface morphology of produced layers. (b) The cross-section of the sample. (c) The corresponding Raman spectra (532 nm excitation) recorded from light contrast region. Intensity ratio of = 2. (d) 2D-band peak fittings with a single lorentzian curve centered at 2680 cm−1.
