Room-temperature production of silver-nanofiber film for large-area, transparent and flexible surface electromagnetic interference shielding

By Sen Lin, Haiyang Wang, Fan Wu, Qingmin Wang, Xiaopeng Bai, Di Zu, Jianan Song, Dong Wang, Zhenglian Liu, Ziwei Li and 5 more. npj Flexible Electronics, 2019

191 citations recorded by the source corpus.

A kind of pollution known as electromagnetic interference (EMI), which results from ubiquitous usage of various electronic communication and military radar equipment, has been receiving increasing attention recently. However, large-area EMI shielding on transparent and/or curved surfaces, including building windows, curved glass wall, and special requirements spaces (SRSs), remains hard to achieve. In this paper, a silver nanofiber (AgNF) based flexible and transparent EMI shielding film was successfully assembled via a room-temperature roll-to-roll production method. For transparent application scenario, AgNF with 89% transmittance in visible range and 1 μm thickness shows ~20 dB shielding efficiency (EMI SE). On the other hand, total shielding (>50 dB) is obtained when the thickness of AgNF increases to 10 μm, while its transmittance in visible range remains higher than 75%. Considering the facile and scale-free production technology, this material can be readily applied in large-scale, transparent, and/or SRSs EMI shielding.

Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/3a383bb0f6e6e007e25c43599c841be8cf382dfd