• 文献标题:   Copper-Coated Reduced Graphene Oxide Fiber Mesh-Polymer Composite Films for Electromagnetic Interference Shielding
  • 文献类型:   Article
  • 作  者:   LI MX, YANG K, ZHU WG, SHEN JH, ROLLINSON J, HELLA M, LIAN J
  • 作者关键词:   reduced graphene oxide, flexible, fiber mesh, composite film, electromagnetic shielding
  • 出版物名称:   ACS APPLIED NANO MATERIALS
  • ISSN:   2574-0970
  • 通讯作者地址:   Rensselaer Polytech Inst
  • 被引频次:   0
  • DOI:   10.1021/acsanm.0c00843
  • 出版年:   2020

▎ 摘  要

Expected to become mainstream in the electronics industry, flexible electronics still face major challenging issues. For polymeric-based flexible electronic substrates in particular, these challenges include a lack of electromagnetic shielding capability and poor heat dissipation. Here, we report a highly flexible and thermally conductive macroscopic polydimethylsiloxane (PDMS) polymer film embedded with a copper-coated reduced graphene oxide (rGO) fiber mesh. The rGO fibers are assembled into 3D fiber meshes and electroplated with micrometer-thick copper coatings, displaying excellent electrical and thermal conductivities. Oriented in the horizontal and perpendicular directions within the PDMS polymeric matrix, the fiber mesh serves as a highly electrically and thermally conductive backbone through the in-plane direction. Meanwhile, the fiber mesh also effectively shields electromagnetic interference in the X-band without causing thermal damage. The macroscopic film remains electrically insulated in the through-plane direction. Utilizing both the favorable thermal and electrical properties of the graphene fiber-based mesh and the flexibility of the PDMS matrix, our film may exhibit potential for flexible electronics applications such as wearable electronic thermal management and flexible microwave identification devices.