11:45 AM - 12:00 PM
[22a-S011-11] Graphene Nanoribbon Fabrication by Gate-Controlled Edge-Selective Photo-Oxidation
Keywords:graphene nanoribbon,photo-oxidation,field-effect surface chemistry
Graphene is known to be easily oxidized by ultraviolet light irradiation in air. We have shown that the photo-oxidation can be controlled by using a field-effect-transistor configuration [Appl. Phys. Lett. 103 (2013) 201605]. The transistor-controlled photo-oxidation occurs selectively at the edges of the graphene channel, and proceeds into the channel center. The photo-oxidized graphene is an insulator, and thus this phenomenon enables us to narrow the graphene channel. In this presentation, we will report on fabrication of a graphene nanoribbon by means of the transistor-controlled photo-oxidation of graphene.