arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.04902cond-mat.mtrl-scicond-mat.mes-hall
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具有准一维范德华金属填料的电磁极化选择性复合材料

Electromagnetic-Polarization Selective Composites with Quasi-1D van der Waals Metallic Fillers

Zahra Barani, Fariborz Kargar, Yassamin Ghafouri, Saba Baraghani, Sriharsha Sudhindra, Amirmahdi Mohammadzadeh, Tina T. Salguero, Alexander A. Balandin

摘要:

我们报告的柔性聚合物复合材料薄膜的制备与对齐的金属填料组成的原子链束的准一维(1D)范德华材料三硒化钽,TaSe3。材料的功能,嵌入在纳米级,是通过模仿电磁孔径网格天线的设计。经处理的复合材料采用化学剥离的TaSe 3纳米线作为并入薄膜内的网格构建块。使用“刮刀涂布”方法实现填料对齐。在X波段频率范围内进行的测量表明,通过这种薄膜的电磁传输可以通过改变准一维填料的相对取向和电磁波的偏振显着变化。我们认为,这种偏振敏感聚合物薄膜与准一维填料是适用于先进的电磁干扰屏蔽在未来的通信系统。

英文摘要:

We report on the preparation of flexible polymer composite films with aligned metallic fillers comprised of atomic chain bundles of the quasi-one-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 quasi-1D fillers are applicable to advanced electromagnetic interference shielding in future communication systems.

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