Synergistic effect of graphene and carbon nanotube for high-performance electromagnetic interference shielding films

By E. Zhou, Jiabin Xi, Yan Guo, Yingjun Liu, Zhen Xu, Li-hua Peng, Weiwei Gao, J. Ying, Zichen Chen, Chao Gao. Carbon, 2018

205 citations recorded by the source corpus.

Abstract Macro-assembled carbon-based films (GF) have demonstrated tremendous functional applications as high electrical/thermal conductors, and electromagnetic interference (EMI) shielding materials. Here, we report the synergistic effect of graphene and carbon nanotubes (CNT), that electrical conductivity significant improves from 1.78 × 105 to 2.74 × 105 S m−1, and thermal conductivity improves from 510 to 1154 W m−1 K−1 simply by adding 20 wt% CNTs into the graphene films. Moreover, the EMI shielding performance of the macro-assembled graphene-CNT composite films improves from ∼50 dB for pure GF to ∼60 dB for GF with 20 wt% CNT load. Our finding of the synergistic effect opens an avenue to design materials with higher electrical conductivity, thermal conductivity and EMI shielding performance.

Subfields: Aerospace Engineering, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/8b2d3aab285ef3c3bdb9183c9f6e67d73555b053

Citations in the corpus

• Overview of carbon nanostructures and nanocomposites for electromagnetic wave shielding (2018, unknown): “owing to the synergism of densification effect and bridge effect of the CNT [64].”