Electromagnetic-Polarization-Selective Composites with Quasi-1D Van der Waals Fillers: Nanoscale Material Functionality That Mimics Macroscopic Systems
Electromagnetic-Polarization-Selective Composites with Quasi-1D Van der Waals Fillers: Nanoscale Material Functionality That Mimics Macroscopic Systems
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DOI：
10.1021/acsami.1c03204
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发表时间：
2021-04-30
影响因子：
9.5
通讯作者：
Balandin, Alexander A.
中科院分区：
文献类型：
--
作者：
Barani, Zahra;Kargar, Fariborz;Balandin, Alexander A.
本文报道了用准一维范德华材料三硒化钽（TaSe3）原子链束组成的排列金属填料制备柔性聚合物复合薄膜。通过模拟电磁孔径网格天线的设计，嵌入纳米级的材料功能得以实现。加工后的复合材料采用化学剥落的TaSe3纳米线作为薄膜内的网格构建块。填料对准是使用“叶片涂层”方法实现的。在x波段频率范围内进行的测量表明，通过改变准一维填料的相对取向和电磁波的极化，可以显著改变这种薄膜的电磁传输。我们认为这种具有独特的准一维金属填料的极化敏感聚合物薄膜适用于未来通信系统中的高级电磁干扰屏蔽。
We report on the preparation of flexible polymer composite films with aligned metallic fillers composed of atomic chain bundles of quasione-dimensional (1D) van der Waals material, tantalum triselenide (TaSe3). The material functionality, embedded at the nanoscale level, is achieved by mimicking the design of an electromagnetic aperture grid antenna. The processed composites employ chemically exfoliated TaSe3 nanowires as the grid building blocks incorporated within the thin film. Filler alignment is achieved using the "blade coating" method. Measurements conducted in the X-band frequency range demonstrate that the electromagnetic transmission through such films can be varied significantly by changing the relative orientations of the quasi-1D fillers and the polarization of the electromagnetic wave. We argue that such polarization-sensitive polymer films with unique quasi-1D metallic fillers are applicable to advanced electromagnetic interference shielding in future communication systems.