Skin-like copper/carbon nanotubes/graphene composites and low thermogenesis during electromagnetic interference shielding

Liu, Haizhou; Xu, Ying; Yang, Kang; Yong, Haiyang; Huang, Yan; Han, Dong; Hong, Xin; Yang, Qihua

doi:10.1039/d2tc04552d

J. Mater. Chem. C

2023

DOI: 10.1039/d2tc04552d

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Skin-like copper/carbon nanotubes/graphene composites and low thermogenesis during electromagnetic interference shielding

Haizhou Liu

Ying Xu

Kang Yang

et al.

Abstract: Electromagnetic interference (EMI) shielding is essential for protecting the biological and electronic devices from electromagnetic waves.

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Cited by 4 publications

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Liquid Metal Grid Patterned Thin Film Devices Toward Absorption-Dominant and Strain-Tunable Electromagnetic Interference Shielding

Wei,

Bhuyan,

Kwon

et al. 2024

Nano-Micro Lett.

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The demand of high-performance thin-film-shaped deformable electromagnetic interference (EMI) shielding devices is increasing for the next generation of wearable and miniaturized soft electronics. Although highly reflective conductive materials can effectively shield EMI, they prevent deformation of the devices owing to rigidity and generate secondary electromagnetic pollution simultaneously. Herein, soft and stretchable EMI shielding thin film devices with absorption-dominant EMI shielding behavior is presented. The devices consist of liquid metal (LM) layer and LM grid-patterned layer separated by a thin elastomeric film, fabricated by leveraging superior adhesion of aerosol-deposited LM on elastomer. The devices demonstrate high electromagnetic shielding effectiveness (SE) (SET of up to 75 dB) with low reflectance (SER of 1.5 dB at the resonant frequency) owing to EMI absorption induced by multiple internal reflection generated in the LM grid architectures. Remarkably, the excellent stretchability of the LM-based devices facilitates tunable EMI shielding abilities through grid space adjustment upon strain (resonant frequency shift from 81.3 to 71.3 GHz @ 33% strain) and is also capable of retaining shielding effectiveness even after multiple strain cycles. This newly explored device presents an advanced paradigm for powerful EMI shielding performance for next-generation smart electronics.

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Liquid Metal Grid Patterned Thin Film Devices Toward Absorption-Dominant and Strain-Tunable Electromagnetic Interference Shielding

Wei,

Bhuyan,

Kwon

et al. 2024

Nano-Micro Lett.

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Enhanced electromagnetic shielding with ultrathin VGNs-Metal hybrid structures

Zhang,

Shen,

Wang

et al. 2024

Carbon

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A facile fabrication of an integrated electromagnetic interference shielding material with low electrical resistance based on silver particles/thermoplastic polyurethane composite@copper foil

Sun,

Wang,

Zhang

et al. 2024

Ceramics International

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Skin-like copper/carbon nanotubes/graphene composites and low thermogenesis during electromagnetic interference shielding

Abstract: Electromagnetic interference (EMI) shielding is essential for protecting the biological and electronic devices from electromagnetic waves.

Cited by 4 publications

References 57 publications

Liquid Metal Grid Patterned Thin Film Devices Toward Absorption-Dominant and Strain-Tunable Electromagnetic Interference Shielding

Liquid Metal Grid Patterned Thin Film Devices Toward Absorption-Dominant and Strain-Tunable Electromagnetic Interference Shielding

Enhanced electromagnetic shielding with ultrathin VGNs-Metal hybrid structures

A facile fabrication of an integrated electromagnetic interference shielding material with low electrical resistance based on silver particles/thermoplastic polyurethane composite@copper foil

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