Fig. 2

Schematic illustration of a the photothermal process within the laser writing of graphene electrode; the inset image demonstrates the thermal breaking between C and O–H bonds. b The photochemical process within the laser writing of graphene electrode; the inset image demonstrates the photon induced disassociation of band between C and O–H. c The laser induced forward transfer of graphene based on the roll-to-roll production with a polyimide film [76]