▎ 摘　　要

NOVELTY - Fabricating (M1) a graphene film, involves: heating the substrate at 600-1100 degrees C in a chamber; introducing a carbon source into the chamber at 600-1100 degrees C for 10 seconds to 1 minute; and cooling the substrate to room temperature to form the graphene film. USE - For fabricating a graphene film; for fabricating pillared graphene nanostructure comprising carbon nanotubes on graphene film; for forming graphene based device (comprising dielectric capacitor, electrochemical capacitor, dye-sensitized solar cell , multi-junction tandem solar cell) and graphene based bio-mimicking device (comprising memory device, photovoltaic cell, and capacitor) (claimed). ADVANTAGE - The fabricated graphene film can comprise 1-10 layers of graphene. The graphene extends over an area of at least 6 cm2 or less than 1750 cm2 (preferably less than 100 cm2, especially less than 50 cm2, particularly less than 25 cm2). The graphene has a crystallinity of at least 95%, preferably at least 97%, especially at least 98%, or particularly at least 99%. The carbon nanotube (CNT)/graphene-based hybrid ultracapacitors can exhibit high charge transport capability and hence high power density. The CNT/graphene-based hybrid ultracapacitors demonstrate a relatively high cell voltage, high energy density, and high power density as compared with current electrochemical technologies. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) fabricating (M2) a pillared graphene nanostructure comprising carbon nanotubes on a graphene film, involving: depositing a block copolymer on a substrate; loading a catalyst into the block copolymer; introducing the loaded copolymer into a heated atmosphere of Ar+H2; introducing a carbon source into the heated atmosphere of Ar+H2 to form the pillared graphene nanostructure; and cooling the pillared graphene nanostructure; (2) a graphene based device (D1) comprising: substrate; and an electrode disposed on the substrate, where the electrode comprises a graphene film, the graphene film containing 1-10 layers of graphene and extending over an area of at least 6 cm2; and (3) a graphene based bio-mimicking device (D2) comprising: graphene film containing 1-10 layers of graphene and extending over an area of at least 6 cm2; and oligonucleotides, proteins, or inorganic molecules wrapped within the graphene film.