Transparent electromagnetic shielding film based on additive electrohydrodynamic jet printing technology

Shanrong Hu; Yuanlong Liang; Lixiang Yao; Kai Cheng; Xianjun Huang; Jibin Liu; Peiguo Liu

doi:10.1117/12.2576842

5 November 2020 Transparent electromagnetic shielding film based on additive electrohydrodynamic jet printing technology

Shanrong Hu, Yuanlong Liang, Lixiang Yao, Kai Cheng, Xianjun Huang, Jibin Liu, Peiguo Liu

Author Affiliations +

Proceedings Volume 11565, AOPC 2020: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics; 115650U (2020) https://doi.org/10.1117/12.2576842
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

Transparent electromagnetic interference (EMI) shielding film has a wide range of applications in the optoelectronic and display systems in military, aerospace and other fields, which has attracted widespread attentions. In this paper, the electrohydrodynamic jet printing method was introduced into the additive preparation of transparent conductive films, and a batch of flexible transparent EMI shielding films with good EMI shielding effectiveness and low cost were achieved in a simple and easy way. We utilized electrohydrodynamic jet printing technique to directly print a grid-like micro structure on a flexible and transparent substrate, and a transparent EMI shielding film with a line width of 13.3 μm, period of 300 μm, and light transmittance of 73.2% was obtained. The EMI shielding effectiveness is about -18 dB in X band. In addition, the printing parameters was optimized to obtain transparent EMI shielding films that meet different performance requirements. The transparent EMI shielding film prepared by printing method requires no high-resolution mask and exposure in traditional microfabrication, and is quite low cost and convenient to adjust parameters digitally. This work proves that the additive electrohydrodynamic jet printing perfectly fits the transparent film research in stage of sample design and prototype.

Citation Download Citation

Shanrong Hu, Yuanlong Liang, Lixiang Yao, Kai Cheng, Xianjun Huang, Jibin Liu, and Peiguo Liu "Transparent electromagnetic shielding film based on additive electrohydrodynamic jet printing technology", Proc. SPIE 11565, AOPC 2020: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics, 115650U (5 November 2020); https://doi.org/10.1117/12.2576842

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KEYWORDS

Printing

Electromagnetic coupling

Transmittance

Electromagnetic interference

Resistance

Electromagnetism

Liquids

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