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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...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Nature Singapore
2023
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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. |
format | Online Article Text |
id | pubmed-10397175 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Springer Nature Singapore |
record_format | MEDLINE/PubMed |
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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