Scrolled Production of Large-Scale Continuous Graphene on Copper Foils

We report an efficient and economical way for mass production of large-scale graphene films with high quality and uniformity. By using the designed scrolled copper-graphite structure, a continuous graphene film with typical area of 200 \times 39 cm^2 could be obtained in 15 min, and the production rate of the graphene film and space utilization rate of the CVD reactor can reach 520 cm^2\cdotmin^-1 and 0.38 cm^-1\cdotmin^-1, respectively. Our method provides a guidance for the industrial production of graphene films, and may also accelerate its large-scale applications.