Laminated Laser-Induced Graphene Composites

• Published in: ACS nano Vol. 14; no. 7; pp. 7911 - 7919
• Main Authors: Li, John Tianci, Stanford, Michael G, Chen, Weiyin, Presutti, Steven E, Tour, James M
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 28.07.2020; American Chemical Society (ACS)
• Subjects: 01 COAL, LIGNITE, AND PEAT; flash Joule heating, graphene, turbostratic graphene, graphene morphology, FJH; triboelectric nanogenerators; biocompatible surfaces; lamination; biomaterial; flexible devices; roll-to-roll processing; functional composites; TENG; laser-induced graphene
• ISSN: 1936-0851; 1936-086X
• DOI: 10.1021/acsnano.0c02835

Laser-induced graphene (LIG) is a porous graphene foam generated by lasing carbon-based precursors. Compositing LIG expands the spectrum of applications for which the material may be used. Techniques for scale-up of LIG composites will be essential as the technology approaches commercialization. Roll-to-roll processing is of special interest, as precisely controlled patterning can be performed in conjunction with continuous formation of composites. Here, we demonstrate a simple lamination compositing method that is compatible with roll-to-roll processing and yields functional, patterned, and multilayered LIG composites with various thermoplastic films. Multiple lamination steps are used to encapsulate LIG within composites. We also demonstrate several applications for LIG that have been enabled by the lamination compositing technique. These include robust flexible electrodes generated through laminating copper foil strips into the LIG composite, LIG-based triboelectric nanogenerators to harvest waste mechanical energy, antimicrobial LIG composite bandages with varying hydrophobicity, and LIG puncture detectors.