AI Article Synopsis
- The study showcases a new roll-to-roll method for quickly and cleanly patterning graphene sheets using a specially designed roller that exploits differences in adhesion.
- The patterned graphene can be easily transferred to different surfaces without heat, using a low-strength adhesive to attach it to a PET/silicone backing.
- The process demonstrated a production capability of 120 mm wide films at a speed of 15 meters per minute, with successful uniformity over large areas confirmed by imaging and Raman spectroscopy.
Article 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).
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| http://dx.doi.org/10.1039/c4nr06991a | DOI Listing |
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