Research progress on high-performance electromagnetic interference shielding materials with well-organized multilayered structures

Zheng, Shufang; Wang, Yuyin; Wang, Xuesheng; Lu, Heng

doi:10.1016/j.mtphys.2024.101330

Materials Today Physics

2024

DOI: 10.1016/j.mtphys.2024.101330

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Research progress on high-performance electromagnetic interference shielding materials with well-organized multilayered structures

Shufang Zheng,

Yuyin Wang,

Xuesheng Wang

et al.

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Cited by 6 publications

References 289 publications

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SiC whisker/AgNWs/TPU composite film with asymmetric structure for low‐reflection electromagnetic interference shielding

Wu,

Yu,

et al. 2024

J of Applied Polymer Sci

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The design and preparation of lightweight and flexible electromagnetic interference (EMI) shielding composites with high efficiency and low reflection are critical to the electronic field. First, silver nanowires (AgNWs) were vacuum filtered on the electrospun thermoplastic polyurethane (TPU) fibrous film. Then, by combining the adhesive with the electrospun silicon carbide nanowhisker (SiCnw) @TPU composite fibrous film, the asymmetric EMI shielding composite films with high electromagnetic shielding efficiency (EMI SE) and low incident power were obtained. The lower AgNWs‐TPU layer provides the primary EMI SE, and the upper SiCnw@TPU fibrous film is used for electromagnetic wave absorption. This unique asymmetric structure, the synergistic effect of SiCnw's particular absorbing function and the excellent conductivity of the AgNWs layer make the film show high overall SE (SET = 55.18 dB). In order to improve the absorption effect of the composite film, the number of layers of SiCnw@TPU was adjusted, resulting in a final reflection coefficient value as low as 0.55. This work proposes a new strategy for developing EMI shielding composite films with high efficiency and low reflection, serving as a reference.

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SiC whisker/AgNWs/TPU composite film with asymmetric structure for low‐reflection electromagnetic interference shielding

Wu,

Yu,

et al. 2024

J of Applied Polymer Sci

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Transparent electromagnetic interference shielding materials using MXene

Deng,

Chen,

Liu

et al. 2024

Carbon Energy

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With the rapid advancement of terahertz technologies, electromagnetic interference (EMI) shielding materials are needed to ensure secure electromagnetic environments. Enormous efforts have been devoted to achieving highly efficient EMI shielding films by enhancing flexibility, lightweight, mechanical robustness, and high shielding efficiency. However, the consideration of the optical properties of these shielding materials is still in its infancy. By incorporating transparency, visual information from protected systems can be preserved for monitoring interior working conditions, and the optical imperceptibility allows nonoffensive and easy cover of shielding materials for both device and biology. There are many materials that can be applied to transparent EMI shields. In particular, two‐dimensional transition metal carbide/nitrides (MXenes), possessing the advantages of superior conductivity, optical properties, favorable flexibility, and facile processibility, have become a great candidate. This work reviews the recent research on developing highly efficient and optically transparent EMI shields in a comprehensive way. Materials from MXenes, indium tin oxide, metal, carbon, and conductive polymers are covered, with a focus on the employment of MXene‐based composites in transparent EMI shielding. The prospects and challenges for the future development of MXene‐based transparent EMI shields are discussed. This work aims to promote the development of high‐performance, optically transparent EMI shields for broader applications by leveraging MXenes.

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Multiple layered PVDF-CNTs foams with gradient structure and high electromagnetic shielding performance

Si,

Li,

Ding

et al. 2024

J Polym Res

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Research progress on high-performance electromagnetic interference shielding materials with well-organized multilayered structures

Cited by 6 publications

References 289 publications

SiC whisker/AgNWs/TPU composite film with asymmetric structure for low‐reflection electromagnetic interference shielding

SiC whisker/AgNWs/TPU composite film with asymmetric structure for low‐reflection electromagnetic interference shielding

Transparent electromagnetic interference shielding materials using MXene

Multiple layered PVDF-CNTs foams with gradient structure and high electromagnetic shielding performance

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