Figure 3: (a)Scheme of preparation of graphene by CVD and transfer via polymer support.
The carbon solves into the Ni during the CVD and forms graphene on the surface after cooling.
With a polymer support the graphene can be stamped onto another substrate, after etching
of theNi layer. Patterning of theNi layer allows a control of the shape of the graphene [12].
(b) Roll-to-roll process of graphene films grown on copper foils and transferred on a target
substrate [1].