Multilayered salt water with high optical transparency for EMI shielding applications

Abstract Electromagnetic interference (EMI) shielding for visual observation applications, such as windows utilized in military or aerospace, is important but difficult to realize due to conventional materials having difficulty in achieving sufficient transparency and EMI shielding simultaneously. I...

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Autores principales:	Duy Tung Phan, Chang Won Jung
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/63a819d2a7514886aa238f5e2197224a
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spelling	oai:doaj.org-article:63a819d2a7514886aa238f5e2197224a2021-12-02T11:43:35ZMultilayered salt water with high optical transparency for EMI shielding applications10.1038/s41598-020-78717-02045-2322https://doaj.org/article/63a819d2a7514886aa238f5e2197224a2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78717-0https://doaj.org/toc/2045-2322Abstract Electromagnetic interference (EMI) shielding for visual observation applications, such as windows utilized in military or aerospace, is important but difficult to realize due to conventional materials having difficulty in achieving sufficient transparency and EMI shielding simultaneously. In this paper, we present multilayered structures based on salt water for simultaneous highly optical transparency (OT) and EM shielding effectiveness (SE) performance. In the proposed structures, planar acrylic and glass were used as two types of clear substrates to hold salt water. The measured OT of both acrylic/salt water/acrylic and glass/salt water/glass structures was higher than 90% with a nearly uniform light transmission, which introduced a negligible impact on optical observation. Furthermore, both simulations and experimental results demonstrated that the SE of the multilayer structure was higher than 20 dB in the X-band from 7.5 to 8.5 GHz. Moreover, the SE was significantly enhanced by increasing the thickness of the salt water layer. Especially, both OT and SE of the multilayered structures were improved simultaneously by increasing the salinity of the salt water. These proposed structures demonstrate great potential in EMI shielding observation applications.Duy Tung PhanChang Won JungNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Duy Tung Phan Chang Won Jung Multilayered salt water with high optical transparency for EMI shielding applications
description	Abstract Electromagnetic interference (EMI) shielding for visual observation applications, such as windows utilized in military or aerospace, is important but difficult to realize due to conventional materials having difficulty in achieving sufficient transparency and EMI shielding simultaneously. In this paper, we present multilayered structures based on salt water for simultaneous highly optical transparency (OT) and EM shielding effectiveness (SE) performance. In the proposed structures, planar acrylic and glass were used as two types of clear substrates to hold salt water. The measured OT of both acrylic/salt water/acrylic and glass/salt water/glass structures was higher than 90% with a nearly uniform light transmission, which introduced a negligible impact on optical observation. Furthermore, both simulations and experimental results demonstrated that the SE of the multilayer structure was higher than 20 dB in the X-band from 7.5 to 8.5 GHz. Moreover, the SE was significantly enhanced by increasing the thickness of the salt water layer. Especially, both OT and SE of the multilayered structures were improved simultaneously by increasing the salinity of the salt water. These proposed structures demonstrate great potential in EMI shielding observation applications.
format	article
author	Duy Tung Phan Chang Won Jung
author_facet	Duy Tung Phan Chang Won Jung
author_sort	Duy Tung Phan
title	Multilayered salt water with high optical transparency for EMI shielding applications
title_short	Multilayered salt water with high optical transparency for EMI shielding applications
title_full	Multilayered salt water with high optical transparency for EMI shielding applications
title_fullStr	Multilayered salt water with high optical transparency for EMI shielding applications
title_full_unstemmed	Multilayered salt water with high optical transparency for EMI shielding applications
title_sort	multilayered salt water with high optical transparency for emi shielding applications
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/63a819d2a7514886aa238f5e2197224a
work_keys_str_mv	AT duytungphan multilayeredsaltwaterwithhighopticaltransparencyforemishieldingapplications AT changwonjung multilayeredsaltwaterwithhighopticaltransparencyforemishieldingapplications
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Multilayered salt water with high optical transparency for EMI shielding applications

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