IOP has published Production and processing of graphene and related materials review paper and it is available open access. The paper describes many ways to produce and characterize graphene. It's an impressive effort.
Graphene grown on SiC. Source: Production and processing of graphene and related materials by Claudia Backes et. al.
Graphene grown on SiC. Source: Production and processing of graphene and related materials by Claudia Backes et. al.