Ultralight Graphene Foam/Conductive Polymer Composites for Exceptional Electromagnetic Interference Shielding
Hong Kong University of Science and Technology · University of Hong Kong · +1 more institution
Abstract
Ultralight, high-performance electromagnetic interference (EMI) shielding graphene foam (GF)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites are developed by drop coating of PEDOT:PSS on cellular-structured, freestanding GFs. To enhance the wettability and the interfacial bonds with PEDOT:PSS, GFs are functionalized with 4-dodecylbenzenesulfonic acid. The GF/PEDOT:PSS composites possess an ultralow density of 18.2 × 10–3 g/cm3 and a high porosity of 98.8%, as well as an enhanced electrical conductivity by almost 4 folds from 11.8 to 43.2 S/cm after the incorporation of the conductive PEDOT:PSS. Benefiting from the excellent electrical conductivity, ultralight porous structure,…
Citation impact
- FWCI
- 20.93
- Percentile
- 100%
- References
- 66
Authors
7- YWYing WuCorresponding
Hong Kong University of Science and Technology, University of Hong Kong
- ZWZhenyu Wang
Hong Kong University of Science and Technology, University of Hong Kong
- XLXu Liu
Hong Kong University of Science and Technology, University of Hong Kong
- XSXi Shen
Hong Kong University of Science and Technology, University of Hong Kong
- QZQingbin Zheng
Hong Kong University of Science and Technology, University of Hong Kong
Topics & keywords
- Materials science
- Composite material
- PEDOT:PSS
- Electromagnetic shielding
- Electrical conductor
- Graphene
- Coating
- Conductive polymer