Fig. 5From: Direct Growth of Graphene on Insulator Using Liquid Precursor Via an Intermediate Nanostructured State Carbon NanotubeRaman spectra of graphene grown by CVD for different seed materials including a mechanically exfoliated graphene, b charcoal, c ECR-CVD graphene, and d CVD graphene. The insets in Fig. 5c and d display the representative Raman spectrum of graphene seeds prepared by ECR-CVD and CVD route, respectivelyBack to article page