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학술지 MXene(Ti3C2TX)/graphene/PDMS Composites for Multifunctional Broadband Electromagnetic Interference Shielding Skins
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저자
탐반누엔, 민복기, 이윤식, 김성준, 최춘기
발행일
202008
출처
Chemical Engineering Journal, v.393, pp.1-10
ISSN
1385-8947
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.cej.2020.124608
협약과제
20PB1400, 0.5gpm미만의 원자로냉각재계통 미확인 누설 실시간 감시시스템 개발, 최춘기
초록
With the rapid growth of electronics and telecommunication, there is an intensive requirement for developing electromagnetic interference (EMI) shielding technique to prevent malfunction of electronic equipment and threats to human health from electromagnetic (EM) waves. Herein, we demonstrate a multifunctional EMI shielding skin, which not only shows an excellent EMI shielding effectiveness (SE) but also can play a role as a pressure sensor. The EMI shielding skin consists of freestanding foam-structured graphene-reinforced poly (dimethylsiloxane) (PDMS) matrix. The graphene foam (GF) is decorated by Fe3O4 nanoparticles (NPs)-intercalated the Ti3C2TX nanosheets. The composite exhibits a remarkable average EMI SE of 80 dB in 8.2??12.4 GHz (X-band) and 77 dB in 26.5??40 GHz (Ka-band) due to excellent absorption SE. Furthermore, the lightweight, flexible, and highly conductive GF-based composites hold a promising sensing performance against the external pressure that opens up the possibility to use as the multifunctional EMI shielding skin for the wearable electronics and robotics.
키워드
Electromagnetic interference shielding, Graphene foam, Magnetic nanoparticles, MXene, Pressure sensing
KSP 제안 키워드
2.4 GHz, EMI shielding effectiveness, Electromagnetic (EM) waves, Electromagnetic interference (EMI) shielding, Electromagnetic interference shielding effectiveness(EMI-SE), Electronic equipment, Fe3O4 nanoparticles, Graphene foam, Magnetic Nanoparticle(MNP), Pressure Sensor, Sensing Performance