Anomalous absorption of electromagnetic waves by 2D transition metal carbonitride Ti3CNTx (MXene)
- Authors
- Iqbal, Aamir; Shahzad, Faisal; Hantanasirisakul, Kanit; Kim, Myung-Ki; Kwon, Jisung; Hong, Junpyo; Kim, Hyerim; Kim, Daesin; Gogotsi, Yury; Koo, Chong Min
- Issue Date
- 24-7월-2020
- Publisher
- AMER ASSOC ADVANCEMENT SCIENCE
- Citation
- SCIENCE, v.369, no.6502, pp.446 - +
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENCE
- Volume
- 369
- Number
- 6502
- Start Page
- 446
- End Page
- +
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/54350
- DOI
- 10.1126/science.aba7977
- ISSN
- 0036-8075
- Abstract
- Lightweight, ultrathin, and flexible electromagnetic interference (EMI) shielding materials are needed to protect electronic circuits and portable telecommunication devices and to eliminate cross-talk between devices and device components. Here, we show that a two-dimensional (2D) transition metal carbonitride, Ti3CNTx MXene, with a moderate electrical conductivity, provides a higher shielding effectiveness compared with more conductive Ti3C2Tx or metal foils of the same thickness. This exceptional shielding performance of Ti3CNTx was achieved by thermal annealing and is attributed to an anomalously high absorption of electromagnetic waves in its layered, metamaterial-like structure. These results provide guidance for designing advanced EMI shielding materials but also highlight the need for exploring fundamental mechanisms behind interaction of electromagnetic waves with 2D materials.
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- Appears in
Collections - Graduate School > KU-KIST Graduate School of Converging Science and Technology > 1. Journal Articles
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