Graphene, which is a basic building block of graphite, fullerene, and carbon nanotubes, is patterned effectively by a simple approach involving vapor deposition on Cu or Ag electrodes that were patterned on a highly n-doped silicon wafer with a thermally oxidized SiO2 dielectric layer (see figure). The patterned graphene could serve as excellent bottom-contact electrodes for high-performance organic field-effect transistors.
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