Recent Advances in Design Strategies and Multifunctionality of Flexible Electromagnetic Interference Shielding Materials

With rapid development of 5G communication technologies, electromagnetic interference (EMI) shielding for electronic devices has become an urgent demand in recent years, where the development of corresponding EMI shielding materials against detrimental electromagnetic radiation plays an essential role. Meanwhile, the EMI shielding materials with high flexibility and functional integrity are highly demanded for emerging shielding applications. Hitherto, a variety of flexible EMI shielding materials with lightweight and multifunctionalities have been developed. In this review, we not only introduce the recent development of flexible EMI shielding materials, but also elaborate the EMI shielding mechanisms and the index for green EMI shielding performance. In addition, the construction strategies for sophisticated multifunctionalities of flexible shielding materials are summarized. Finally, we propose several possible research directions for flexible EMI shielding materials in near future, which could be inspirational to the fast-growing next-generation flexible electronic devices with reliable and multipurpose protections as offered by EMI shielding materials.

Automated summary

With the rapid development of 5G communication technologies, there is an urgent demand for electromagnetic interference (EMI) shielding for electronic devices. This review introduces the recent development of flexible EMI shielding materials, elaborates on the EMI shielding mechanisms and the index for green EMI shielding performance, summarizes the construction strategies for multifunctional flexible shielding materials, and proposes possible research directions for the future development of flexible EMI shielding materials.