TY - JOUR
T1 - 3D Architectural MXene-based Composite Films for Stealth Terahertz Electromagnetic Interference Shielding Performance
AU - Theja, Vaskuri C.S.
AU - Assi, Dani S.
AU - Huang, Hongli
AU - Alsulami, Raghad Saud
AU - Chen, Bao Jie
AU - Chan, Chi Hou
AU - Shek, Chan Hung
AU - Karthikeyan, Vaithinathan
AU - Roy, Vellaisamy A.L.
N1 - Publisher Copyright:
© 2023 The Authors. Advanced Materials Interfaces published by Wiley-VCH GmbH.
PY - 2023/12/22
Y1 - 2023/12/22
N2 - The terahertz frequency range is gaining popularity in security, stealth technology, and the future 6G network communication. For the control of severe terahertz electromagnetic interference (EMI) pollution, frequency-selective stealth-capable shielding materials are being explored to mask terahertz signals. For the realization of masking terahertz signals, the robustness, lightweight, and shape-conformable materials with excellent terahertz EMI shielding/absorption are crucial. Here, the study reports the fabrication of 3D symmetric pyramidal architectural MXene composite films with frequency-selective stealth performance characteristics via the facile drop casting method. With the high absorption capability of 2D MXene layers, the MXene composite films exhibit substantial terahertz stealth performance. 3D pyramidal microstructure design leads to frequency selective surface-assisted reflection resonance in the frequency range of 0.6–1.1 THz. The MXene composite film demonstrates an outstanding maximum terahertz shielding effectiveness (SE) of up to 70.4 dB and a specific SE of 0.55 dB µm−1. These terahertz SE values exceed all of those for MX-based shielding material designs reported in the literature. The investigation will open a new direction toward developing terahertz EMI shielding thin films with easy integration into any surface for stealth capabilities.
AB - The terahertz frequency range is gaining popularity in security, stealth technology, and the future 6G network communication. For the control of severe terahertz electromagnetic interference (EMI) pollution, frequency-selective stealth-capable shielding materials are being explored to mask terahertz signals. For the realization of masking terahertz signals, the robustness, lightweight, and shape-conformable materials with excellent terahertz EMI shielding/absorption are crucial. Here, the study reports the fabrication of 3D symmetric pyramidal architectural MXene composite films with frequency-selective stealth performance characteristics via the facile drop casting method. With the high absorption capability of 2D MXene layers, the MXene composite films exhibit substantial terahertz stealth performance. 3D pyramidal microstructure design leads to frequency selective surface-assisted reflection resonance in the frequency range of 0.6–1.1 THz. The MXene composite film demonstrates an outstanding maximum terahertz shielding effectiveness (SE) of up to 70.4 dB and a specific SE of 0.55 dB µm−1. These terahertz SE values exceed all of those for MX-based shielding material designs reported in the literature. The investigation will open a new direction toward developing terahertz EMI shielding thin films with easy integration into any surface for stealth capabilities.
KW - MXenes
KW - absorption
KW - shielding
KW - stealth
KW - terahertz
UR - http://www.scopus.com/inward/record.url?scp=85169160393&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/15d331d8-7c4f-35b6-9da6-1250838a7e8a/
U2 - 10.1002/admi.202300440
DO - 10.1002/admi.202300440
M3 - Article
AN - SCOPUS:85169160393
VL - 10
JO - Advanced Materials Interfaces
JF - Advanced Materials Interfaces
IS - 36
M1 - 2300440
ER -