Room-temperature production of silver-nanofiber film for large-area, transparent and flexible surface electromagnetic interference shielding
Room-temperature production of silver-nanofiber film for large-area, transparent and flexible surface electromagnetic interference shielding
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DOI：
10.1038/s41528-019-0050-8
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发表时间：
2019-03
影响因子：
14.6
通讯作者：
Sen Lin;Haiyang Wang;Fan Wu;Qingmin Wang;Xiaopeng Bai;Di Zu;Jianan Song;Dong Wang;Zhenglian Li
中科院分区：
文献类型：
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作者：
Sen Lin;Haiyang Wang;Fan Wu;Qingmin Wang;Xiaopeng Bai;Di Zu;Jianan Song;Dong Wang;Zhenglian Li
由于各种电子通信和军用雷达设备的普遍使用而产生的一种称为电磁干扰（EMI）的污染近来受到越来越多的关注。然而，在透明和/或弯曲表面（包括建筑物窗户、弯曲玻璃墙和特殊要求空间（SRS））上的大面积EMI屏蔽仍然难以实现。本文采用室温卷对卷的方法成功地组装了一种银纳米纤维（AgNF）基柔性透明EMI屏蔽薄膜。对于透明应用场景，AgNF在可见光范围内的透射率为89%，厚度为1 μm，屏蔽效率（EMI SE）约为20 dB。当厚度增加到10 μm时，AgNF的总屏蔽率大于50 dB，可见光透过率大于75%。考虑到制备工艺的简便性和无氧化皮性，该材料可以很容易地应用于大规模的、透明的和/或SRSs的EMI屏蔽。
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.