title: Roll-to-roll continuous patterning and transfer of graphene via dispersive adhesion.
abstract: We present a roll-to-roll, continuous patterning and transfer of graphene sheets capable of residue-free and fast patterning. The graphene sheet is supported with dispersive adhesion. Graphene is continuously patterned by the difference in adhesion forces with a pre-defined embossed roller. The patterned graphene sheet adheres to the polyethylene terephthalate (PET)/silicone with very low strength and can be easily transferred to various substrates without the aid of any heating mechanism. The width of the patterned film was 120 mm and a production rate of 15 m min(-1) for patterning was achieved. Large-area uniformity was confirmed by observing the optical images on 4 inch Si wafer and Raman mapping spectra for 50 × 50 mm(2).
authors: Department of Chemistry, Seoul National University, Seoul, 151-747, Korea. byunghee@snu.ac.kr.
authors: Taejun
authors: T
authors: Choi
authors: Sang Jin
authors: SJ
authors: Kim
authors: Subeom
authors: S
authors: Park
authors: Taek Yong
authors: TY
authors: Hwang
authors: Youngro
authors: Y
authors: Jeon
authors: Byung Hee
authors: BH
authors: Hong