材料科学
电磁屏蔽
Boosting(机器学习)
电磁干扰
干扰(通信)
碳纤维
工程物理
纳米技术
复合材料
电子工程
计算机科学
电信
复合数
工程类
频道(广播)
机器学习
作者
Shengjie Li,Chengqing Tang,Yuncai Song,Sheng Zhang,Zhi Hong Hang,Xiaohua Zhang,Yitan Li,Zhaohui Yang
标识
DOI:10.1021/acsami.3c18895
摘要
Electromagnetic interference (EMI) shielding materials with lightweight, high shielding effectiveness, excellent chemical stability, especially minimized secondary electromagnetic pollution, are urgently desired for integrated electronic systems operating in harsh working environments. Here in this study, by systematically engineering and matching the interfacial properties of carbon-based membrane materials, i.e., graphite paper, whisker carbon nanotube paper (WCNT paper), carbon nanotube film (CNT film), bucky paper (BP), and carbon cloth (CC) with three-dimensional (3D) porous carbon nanotube sponge (CNTS), we successfully constructed a series of multifunctional all-carbon EMI shielding materials, which exhibit excellent average shielding effectiveness of over 90 dB with a thickness of about 1 mm and dramatically minimized secondary electromagnetic reflection. Moreover, benefiting from the all-carbon nature and engineered interfaces, our CMC materials also exhibit excellent photothermal and Joule heating performances. These results not only provide guidance for designing advanced multifunctional all-carbon EMI shielding materials but also shed light on the hidden mechanism between interfaces and performances of composite materials.
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