@article{4b93a11a188045ceb2be2cc7599ab9bb,
title = "Enhanced absorption of electromagnetic waves in Ti3C2Tx MXene films with segregated polymer inclusions",
abstract = "MXenes occupy a leading position among materials capable of providing lightweight shielding against electromagnetic interference (EMI) owing to their outstanding metallic conductivity, low density, tunable surface chemistry, and easy solution processing. In this work, we demonstrate that multiple interfaces of segregated structure in MXene composites enhance the absorption of electromagnetic waves. Ti3C2Tx MXene composite films with segregated polystyrene (PS) inclusions were fabricated via a simple procedure that involves mixing conductive MXene flakes and insulative PS beads in an aqueous medium followed by vacuum filtration and hot pressing. As surface area of multiple interfaces increases, total EMI shielding effectiveness significantly increases at the same volume fraction of PS inclusions. Therefore, the improved shielding efficiency can be attributed to enhanced absorption of electromagnetic waves resulting from strong multiple reflections at internal interfaces of the segregated structure. This work highlights future challenges and provides guidelines toward new structural designs for next-generation shielding materials with tunable electromagnetic wave absorption properties.",
keywords = "Electromagnetic interference shielding, Interfaces, Internal scattering, MXene, Multiple reflections",
author = "Aamir Iqbal and Pradeep Sambyal and Jisung Kwon and Meikang Han and Junpyo Hong and Kim, {Seon Joon} and Kim, {Myung Ki} and Yury Gogotsi and Koo, {Chong Min}",
note = "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 and 2021M3H4A1A03047327 ) through the National Research Foundation of Korea , funded by the Ministry of Science, ICT and Future Planning , Republic of Korea. This work was also financially supported by KU- KIST Research, and Internal Research programs, funded by the Korea Institute of Science and Technology ( KIST ). Collaboration between KIST and Drexel University was supported by the Global Research and Development Center Program (NNFC-Drexel- SMU FIRST Nano Co-op Center, 2015K1A4A3047100 ), through the National Research Foundation of Korea ( NRF ). 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 and 2021M3H4A1A03047327) through the National Research Foundation of Korea, funded by the Ministry of Science, ICT and Future Planning, Republic of Korea. This work was also financially supported by KU-KIST Research, and Internal Research programs, funded by the Korea Institute of Science and Technology (KIST). Collaboration between KIST and Drexel University was supported by the Global Research and Development Center Program (NNFC-Drexel-SMU FIRST Nano Co-op Center, 2015K1A4A3047100), through the National Research Foundation of Korea (NRF). Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",
year = "2021",
month = sep,
day = "8",
doi = "10.1016/j.compscitech.2021.108878",
language = "English",
volume = "213",
journal = "Composites Science and Technology",
issn = "0266-3538",
publisher = "Elsevier BV",
}