用于高电磁干扰屏蔽效能的柔性透明石墨烯/银纳米线复合薄膜
Flexible and transparent graphene/silver-nanowires composite film for high electromagnetic interference shielding effectiveness.
作者信息
Zhang Ning, Wang Zhe, Song Rongguo, Wang Qianlong, Chen Hongye, Zhang Bin, Lv Haifei, Wu Zhi, He Daping
机构信息
Hubei Engineering Research Center of RF-Microwave Technology and Application, School of Science, Wuhan University of Technology, Wuhan 430070, China.
Shenzhen Institute of Advanced Graphene Application and Technology (SIAGAT), Shenzhen 518106, China.
出版信息
Sci Bull (Beijing). 2019 Apr 30;64(8):540-546. doi: 10.1016/j.scib.2019.03.028. Epub 2019 Mar 28.
Herein, an efficient approach to prepare flexible, transparent, and lightweight films based on graphene nanosheets (GNS) and silver nanowires (AgNWs) for high electromagnetic interference (EMI) shielding effectiveness (SE) has been explained. High-conductive GNS were fabricated by liquid phase stripping and composited with AgNWs by a two-step spin-coating method. Owing to the high transparency, good conductivity, and homogeneous distribution of both GNS and AgNWs, the obtained GNS/AgNWs film exhibits superb EMI SE and light transmittance, yielding a significantly high EMI SE up to 26 dB in both Ku-band and K-band and light transmittance higher than 78.4%. Moreover, this GNS/AgNWs film shows good flexibility and excellent structural stability. The obtained flexible, light and transparent film could have a great potential for transparent EMI shielding and smart electronics.
本文阐述了一种基于石墨烯纳米片（GNS）和银纳米线（AgNWs）制备具有高电磁干扰（EMI）屏蔽效能（SE）的柔性、透明且轻质薄膜的有效方法。通过液相剥离制备了高导电性的GNS，并采用两步旋涂法将其与AgNWs复合。由于GNS和AgNWs都具有高透明度、良好的导电性以及均匀分布，所得的GNS/AgNWs薄膜展现出卓越的EMI SE和透光率，在Ku波段和K波段均产生高达26 dB的显著高EMI SE，且透光率高于78.4%。此外，这种GNS/AgNWs薄膜具有良好的柔韧性和出色的结构稳定性。所获得的柔性、轻质且透明的薄膜在透明EMI屏蔽和智能电子领域具有巨大潜力。
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