TY - JOUR
T1 - Anomalous absorption of electromagnetic waves by 2D transition metal carbonitride Ti3CNTx(MXene)
AU - Iqbal, Aamir
AU - Shahzad, Faisal
AU - Hantanasirisakul, Kanit
AU - Kim, Myung Ki
AU - Kwon, Jisung
AU - Hong, Junpyo
AU - Kim, Hyerim
AU - Kim, Daesin
AU - Gogotsi, Yury
AU - Koo, Chong Min
N1 - Funding Information:
This work was supported by a grant from the Construction Technology Research Project (19SCIP-B146646-02), funded by the Ministry of Land, Infrastructure, and Transport; the Basic Science Research Program (2017R1A2B3006469) through the National Research Foundation of Korea, funded by the Ministry of Science, ICT, and Future Planning; the Fundamental R&D Program (10077545) for Core Technology of Materials; the Industrial Strategic Technology Development Program, funded by the Ministry of Trade, Industry, and Energy, Republic of Korea. This work was also financially supported by KU-KIST Research, Young Fellow, and KIST School Partnership Project and KIST Internal Research programs, funded by the Korea Institute of Science and Technology (KIST). This work was technically supported by Pohang Light Source. Development of characterization of Ti3CNTx MXene by Y.G. and K.H was supported by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (grant no. DESC0018618).
Publisher Copyright:
© 2020 American Association for the Advancement of Science. All rights reserved.
PY - 2020/7/24
Y1 - 2020/7/24
N2 - 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, Ti3CNTxMXene, 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 Ti3CNTxwas 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.
AB - 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, Ti3CNTxMXene, 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 Ti3CNTxwas 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.
UR - http://www.scopus.com/inward/record.url?scp=85088500568&partnerID=8YFLogxK
U2 - 10.1126/science.aba7977
DO - 10.1126/science.aba7977
M3 - Article
C2 - 32703878
AN - SCOPUS:85088500568
SN - 0036-8075
VL - 369
SP - 446
EP - 450
JO - Science
JF - Science
IS - 6502
ER -