Journal article
Electromagnetic Shielding of Monolayer MXene Assemblies
Advanced materials (Weinheim), v 32(9), pp e1906769-n/a
05 Mar 2020
PMID: 31971302
Abstract
Miniaturization of electronics demands electromagnetic interference (EMI) shielding of nanoscale dimension. The authors report a systematic exploration of EMI shielding behavior of 2D Ti3C2Tx MXene assembled films over a broad range of film thicknesses, monolayer by monolayer. Theoretical models are used to explain the shielding mechanism below skin depth, where multiple reflection becomes significant, along with the surface reflection and bulk absorption of electromagnetic radiation. While a monolayer assembled film offers ≈20% shielding of electromagnetic waves, a 24‐layer film of ≈55 nm thickness demonstrates 99% shielding (20 dB), revealing an extraordinarily large absolute shielding effectiveness (3.89 × 106 dB cm2 g−1). This remarkable performance of nanometer‐thin solution processable MXene proposes a paradigm shift in shielding of lightweight, portable, and compact next‐generation electronic devices.
Self‐assembly of monolayer MXene and systematic exploration of the electromagnetic interference shielding behavior of 2D Ti3C2Tx MXene are presented. Theoretical models explain the shielding mechanism below skin depth. A monolayer assembled MXene film (2.3 nm) and 24‐layer film (≈55 nm) offer ≈20% and 99% shielding, respectively. The extraordinarily large absolute shielding effectiveness reaches 3.89 × 106 dB cm2 g−1.
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Details
- Title
- Electromagnetic Shielding of Monolayer MXene Assemblies
- Creators
- Taeyeong Yun - KAIST Institute for NanocenturyHyerim Kim - Korea UniversityAamir Iqbal - University of Science and TechnologyYong Soo Cho - Korea UniversityGang San Lee - KAIST Institute for NanocenturyMyung‐Ki Kim - Korea UniversitySeon Joon Kim - Drexel UniversityDaesin Kim - Korea UniversityYury Gogotsi - Drexel UniversitySang Ouk Kim - KAIST Institute for NanocenturyChong Min Koo - University of Science and Technology
- Publication Details
- Advanced materials (Weinheim), v 32(9), pp e1906769-n/a
- Publisher
- Wiley
- Number of pages
- 9
- Grant note
- KIST‐KAIST (2V05750) Ministry of Trade, Industry and Energy (19SCIP‐B146646‐02) Korea Institute of Science and Technology Basic Science Research Program (2017R1A2B3006469; 2019M3D1A2014004) Leading Foreign Research Institute Recruitment Program (2015K1A4A3047100) National Research Foundation of Korea National Creative Research Initiative (CRI) Centre for Multi‐Dimensional Directed Nanoscale Assembly (2015R1A3A2033061) Ministry of Science, ICT and Future Planning Fundamental R&D Program (10077545) Ministry of Land, Infrastructure and Transport
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000508653800001
- Scopus ID
- 2-s2.0-85078678636
- Other Identifier
- 991014877958004721
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Highly Cited Paper
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter