For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
11
views
107
references
 Top references
cited by
3
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      97
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

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

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Highlights

          • Flash-induced porous graphene (FPG) was synthesized via a broad-spectrum flash lamp that induced synergistic photo-effects between ultraviolet and visible-near-infrared wavelengths, resulting in large-area synthesis in just a few milliseconds.

          • A hollow pillar graphene with low sheet resistance of 18 Ω sq −1 was produced, exhibiting low density (0.0354 g cm −3) and outstanding absolute electromagnetic interference shielding effectiveness of 1.12 × 10 5 dB cm 2 g −1.

          • A lightweight, flexible, and high-throughput FPG is applied for electromagnetic interference shielding of a drone radar system and the human body.

          Supplementary Information

          The online version contains supplementary material available at 10.1007/s40820-023-01157-8.

          Abstract

          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.

          Supplementary Information

          The online version contains supplementary material available at 10.1007/s40820-023-01157-8.

          Related collections

          Most cited references107

          • Record: found
          • Abstract: not found
          • Article: not found

          Raman spectroscopy of graphene and graphite: Disorder, electron–phonon coupling, doping and nonadiabatic effects

          Andrea C Ferrari (2007)
          Article 0 comments Cited 1314 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Electromagnetic interference shielding with 2D transition metal carbides (MXenes)

            F. Shahzad, M. Alhabeb, C. Hatter … (2016)
            Materials with good flexibility and high conductivity that can provide electromagnetic interference (EMI) shielding with minimal thickness are highly desirable, especially if they can be easily processed into films. Two-dimensional metal carbides and nitrides, known as MXenes, combine metallic conductivity and hydrophilic surfaces. Here, we demonstrate the potential of several MXenes and their polymer composites for EMI shielding. A 45-micrometer-thick Ti3C2Tx film exhibited EMI shielding effectiveness of 92 decibels (>50 decibels for a 2.5-micrometer film), which is the highest among synthetic materials of comparable thickness produced to date. This performance originates from the excellent electrical conductivity of Ti3C2Tx films (4600 Siemens per centimeter) and multiple internal reflections from Ti3C2Tx flakes in free-standing films. The mechanical flexibility and easy coating capability offered by MXenes and their composites enable them to shield surfaces of any shape while providing high EMI shielding efficiency.
            Article 0 comments Cited 1258 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Laser-induced porous graphene films from commercial polymers

              Jian Lin, Zhiwei Peng, Yuanyue Liu … (2015)
              Synthesis and patterning of carbon nanomaterials cost effectively is a challenge in electronic and energy storage devices. Here report a one-step, scalable approach for producing and patterning porous graphene films with 3-dimensional networks from commercial polymer films using a CO2 infrared laser. The sp3-carbon atoms are photothermally converted to sp2-carbon atoms by pulsed laser irradiation. The resulting laser-induced graphene (LIG) exhibits high electrical conductivity. The LIG can be readily patterned to interdigitated electrodes for in-plane microsupercapacitors with specific capacitances of >4 mF·cm−2 and power densities of ~9 mW·cm−2. Theoretical calculations partially suggest that enhanced capacitance may result from LIG’s unusual ultra-polycrystalline lattice of pentagon-heptagon structures. Combined with the advantage of one-step processing of LIG in air from commercial polymer sheets, which would allow the employment of a roll-to-roll manufacturing process, this technique provides a rapid route to polymer-written electronic and energy storage devices.
              Article 0 comments Cited 586 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Contributors
                Jung Hwan Park: parkjh1151@kumoh.ac.kr
                Keon Jae Lee: keonlee@kaist.ac.kr
                Journal
                Journal ID (nlm-ta): Nanomicro Lett
                Journal ID (iso-abbrev): Nanomicro Lett
                Title: Nano-Micro Letters
                Publisher: Springer Nature Singapore (Singapore )
                ISSN (Print): 2311-6706
                ISSN (Electronic): 2150-5551
                Publication date (Electronic): 2 August 2023
                Publication date PMC-release: 2 August 2023
                Publication date Collection: December 2023
                Volume: 15
                Electronic Location Identifier: 191
                Affiliations
                [1 ]GRID grid.37172.30, ISNI 0000 0001 2292 0500, Department of Materials Science and Engineering, , Korea Advanced Institute of Science and Technology (KAIST), ; 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
                [2 ]GRID grid.37172.30, ISNI 0000 0001 2292 0500, School of Electrical Engineering, , Korea Advanced Institute of Science and Technology (KAIST), ; 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
                [3 ]GRID grid.410901.d, ISNI 0000 0001 2325 3578, Department of Printed Electronics, Nano-Convergence Manufacturing Systems Research Division, , Korea Institute of Machinery and Materials (KIMM), ; 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon, 34103 Republic of Korea
                [4 ]GRID grid.412485.e, ISNI 0000 0000 9760 4919, Department of Mechanical System Design Engineering, , Seoul National University of Science and Technology, ; 232 Gongneung-ro, Nowon-gu, Seoul, 01811 Republic of Korea
                [5 ]GRID grid.418997.a, ISNI 0000 0004 0532 9817, Department of Mechanical Engineering (Department of Aeronautics, Mechanical and Electronic Convergence Engineering), , Kumoh National Institute of Technology, ; 61 Daehak-ro, Gumi, Gyeongbuk 39177 Republic of Korea
                Article
                Publisher ID: 1157
                DOI: 10.1007/s40820-023-01157-8
                PMC ID: 10397175
                PubMed ID: 37532956
                SO-VID: 76ad78fe-cdf9-48b1-a60c-27d984450c88
                Copyright © © The Author(s) 2023
                License:

                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/.

                History
                Date received : 7 April 2023
                Date accepted : 17 June 2023
                Funding
                Funded by: Shanghai Jiao Tong University
                Open Access :

                Open access funding provided by Shanghai Jiao Tong University.

                Categories
                Subject: Article
                Custom metadata
                issue-copyright-statement © Shanghai Jiao Tong University 2023

                Keywords: porous graphene,flash lamp,photo-pyrolysis,high-throughput,electromagnetic interference shielding
                Data availability:
                Keywords: porous graphene, flash lamp, photo-pyrolysis, high-throughput, electromagnetic interference shielding

                Comments

                Comment on this article

                scite_

                Similar content97

                See all similar

                Cited by3

                See all cited by

                Most referenced authors1,261

                See all reference authors