TY - JOUR
T1 - Polymer-Assisted Fabrication of Silver Nanowire Cellular Monoliths: Towards Hydrophobic and Ultraflexible High-Performance Electromagnetic Interference Shielding Materials
AU - Zeng, Zhihui
AU - Li, Weiwei
AU - Wu, Na
AU - Zhao, Shanyu
AU - Lu, Xuehong
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Z.Z. and X.L. thank Nanyang Technological University, Singapore, for providing funding in the course of this work. Z.Z. and W.L. contributed equally to this work.
PY - 2020/8/3
Y1 - 2020/8/3
N2 - Metal nanofibers with excellent electrical conductivity and superior mechanical flexibility have great potentials for fabrication of lightweight, flexible and high-performance electromagnetic interference (EMI) shielding architectures. The weak interactions and large contact resistance among the wires, however, hinder their assembly into robust and high-performance EMI shielding monoliths. In this work, we used low fractions of polymers to assist the construction of lightweight, flexible, and highly conductive silver nanowire (AgNW) cellular monoliths with significantly enhanced mechanical strength and EMI shielding effectiveness (SE). The normalized surface specific SE of our AgNW-based cellular monoliths can reach up to 20522 dB·cm2/g, outracing that of most shielding materials ever reported. Moreover, this robust conductive framework enabled the successful fabrication of hydrophobic, ultraflexible and highly stretchable aerogel/polymer composites with outstanding EMI SE even at an extremely low AgNW content. Thus, this work demonstrated a facile and efficient strategy for assembling metal nanofiber-based functional high-performance EMI shielding architectures.
AB - Metal nanofibers with excellent electrical conductivity and superior mechanical flexibility have great potentials for fabrication of lightweight, flexible and high-performance electromagnetic interference (EMI) shielding architectures. The weak interactions and large contact resistance among the wires, however, hinder their assembly into robust and high-performance EMI shielding monoliths. In this work, we used low fractions of polymers to assist the construction of lightweight, flexible, and highly conductive silver nanowire (AgNW) cellular monoliths with significantly enhanced mechanical strength and EMI shielding effectiveness (SE). The normalized surface specific SE of our AgNW-based cellular monoliths can reach up to 20522 dB·cm2/g, outracing that of most shielding materials ever reported. Moreover, this robust conductive framework enabled the successful fabrication of hydrophobic, ultraflexible and highly stretchable aerogel/polymer composites with outstanding EMI SE even at an extremely low AgNW content. Thus, this work demonstrated a facile and efficient strategy for assembling metal nanofiber-based functional high-performance EMI shielding architectures.
UR - http://hdl.handle.net/10754/664591
UR - https://pubs.acs.org/doi/10.1021/acsami.0c10492
U2 - 10.1021/acsami.0c10492
DO - 10.1021/acsami.0c10492
M3 - Article
C2 - 32804478
SN - 1944-8244
JO - ACS Applied Materials & Interfaces
JF - ACS Applied Materials & Interfaces
ER -