Laminated Object Manufacturing of 3D‐Printed Laser‐Induced Graphene Foams. Issue 28 (29th May 2018)

• Record Type: Journal Article
• Authors: Luong, Duy Xuan; Subramanian, Ajay K.; Silva, Gladys A. Lopez; Yoon, Jongwon; Cofer, Savannah; Yang, Kaichun; Owuor, Peter Samora; Wang, Tuo; Wang, Zhe; Lou, Jun; Ajayan, Pulickel M.; Tour, James M.
• Is Part Of: Advanced materials. Volume 30:Issue 28(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-05-29
• Subjects: 3D printing -- flexible electronics -- graphene foams -- laser‐induced graphene -- Li‐ion capacitors; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201707416
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: Laser‐induced graphene (LIG), a graphene structure synthesized by a one‐step process through laser treatment of commercial polyimide (PI) film in an ambient atmosphere, has been shown to be a versatile material in applications ranging from energy storage to water treatment. However, the process as developed produces only a 2D product on the PI substrate. Here, a 3D LIG foam printing process is developed on the basis of laminated object manufacturing, a widely used additive‐manufacturing technique. A subtractive laser‐milling process to yield further refinements to the 3D structures is also developed and shown here. By combining both techniques, various 3D graphene objects are printed. The LIG foams show good electrical conductivity and mechanical strength, as well as viability in various energy storage and flexible electronic sensor applications. Abstract : In order to pursue applications demanding high mass and volume, it is necessary to integrate the properties of 2‐dimensional graphene into macroscopic, 3‐dimensional (3D) structures. Laser‐induced graphene is utilized as a building block material, and 3D graphene foam is produced during the printing process. Various 3D graphene objects that can be used in flexible electronics and energy‐storage devices are printed.