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Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding

Porous 2D materials with high conductivity and large surface area have been proposed for potential electromagnetic interference (EMI) shielding materials in future mobility and wearable applications to prevent signal noise, transmission inaccuracy, system malfunction, and health hazards. Here, we re...

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Autores principales: Lee, Jin Soo, Kim, Jeong-Wook, Lee, Jae Hee, Son, Yong Koo, Kim, Young Bin, Woo, Kyoohee, Lee, Chanhee, Kim, Il-Doo, Seok, Jae Young, Yu, Jong Won, Park, Jung Hwan, Lee, Keon Jae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10397175/
https://www.ncbi.nlm.nih.gov/pubmed/37532956
http://dx.doi.org/10.1007/s40820-023-01157-8
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author Lee, Jin Soo
Kim, Jeong-Wook
Lee, Jae Hee
Son, Yong Koo
Kim, Young Bin
Woo, Kyoohee
Lee, Chanhee
Kim, Il-Doo
Seok, Jae Young
Yu, Jong Won
Park, Jung Hwan
Lee, Keon Jae
author_facet Lee, Jin Soo
Kim, Jeong-Wook
Lee, Jae Hee
Son, Yong Koo
Kim, Young Bin
Woo, Kyoohee
Lee, Chanhee
Kim, Il-Doo
Seok, Jae Young
Yu, Jong Won
Park, Jung Hwan
Lee, Keon Jae
author_sort Lee, Jin Soo
collection PubMed
description Porous 2D materials with high conductivity and large surface area have been proposed for potential electromagnetic interference (EMI) shielding materials in future mobility and wearable applications to prevent signal noise, transmission inaccuracy, system malfunction, and health hazards. Here, we report on the synthesis of lightweight and flexible flash-induced porous graphene (FPG) with excellent EMI shielding performance. The broad spectrum of pulsed flashlight induces photo-chemical and photo-thermal reactions in polyimide films, forming 5 × 10 cm(2)-size porous graphene with a hollow pillar structure in a few milliseconds. The resulting material demonstrated low density (0.0354 g cm(−3)) and outstanding absolute EMI shielding effectiveness of 1.12 × 10(5) dB cm(2) g(−1). The FPG was characterized via thorough material analyses, and its mechanical durability and flexibility were confirmed by a bending cycle test. Finally, the FPG was utilized in drone and wearable applications, showing effective EMI shielding performance for internal/external EMI in a drone radar system and reducing the specific absorption rate in the human body. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-023-01157-8.
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spelling pubmed-103971752023-08-04 Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding Lee, Jin Soo Kim, Jeong-Wook Lee, Jae Hee Son, Yong Koo Kim, Young Bin Woo, Kyoohee Lee, Chanhee Kim, Il-Doo Seok, Jae Young Yu, Jong Won Park, Jung Hwan Lee, Keon Jae Nanomicro Lett Article Porous 2D materials with high conductivity and large surface area have been proposed for potential electromagnetic interference (EMI) shielding materials in future mobility and wearable applications to prevent signal noise, transmission inaccuracy, system malfunction, and health hazards. Here, we report on the synthesis of lightweight and flexible flash-induced porous graphene (FPG) with excellent EMI shielding performance. The broad spectrum of pulsed flashlight induces photo-chemical and photo-thermal reactions in polyimide films, forming 5 × 10 cm(2)-size porous graphene with a hollow pillar structure in a few milliseconds. The resulting material demonstrated low density (0.0354 g cm(−3)) and outstanding absolute EMI shielding effectiveness of 1.12 × 10(5) dB cm(2) g(−1). The FPG was characterized via thorough material analyses, and its mechanical durability and flexibility were confirmed by a bending cycle test. Finally, the FPG was utilized in drone and wearable applications, showing effective EMI shielding performance for internal/external EMI in a drone radar system and reducing the specific absorption rate in the human body. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-023-01157-8. Springer Nature Singapore 2023-08-02 /pmc/articles/PMC10397175/ /pubmed/37532956 http://dx.doi.org/10.1007/s40820-023-01157-8 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Lee, Jin Soo
Kim, Jeong-Wook
Lee, Jae Hee
Son, Yong Koo
Kim, Young Bin
Woo, Kyoohee
Lee, Chanhee
Kim, Il-Doo
Seok, Jae Young
Yu, Jong Won
Park, Jung Hwan
Lee, Keon Jae
Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding
title Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding
title_full Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding
title_fullStr Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding
title_full_unstemmed Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding
title_short Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding
title_sort flash-induced high-throughput porous graphene via synergistic photo-effects for electromagnetic interference shielding
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10397175/
https://www.ncbi.nlm.nih.gov/pubmed/37532956
http://dx.doi.org/10.1007/s40820-023-01157-8
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