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Multifunctional WSe2/Co3C composite for efficient electromagnetic absorption, EMI shielding, and energy conversion by Yuhang Zhu; Tingting Liu; Lin Li; Maosheng Cao is a Materials Science article available to read on EtoBox.

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Currently, as the electromagnetic (EM) environment becomes increasingly complex, single-function EM materials can hardly resist the increasing electromagnetic interference (EMI), and there is an urgent need to develop multifunctional EM materials. In this work, multifunctional WSe 2 /Co 3 C was prepared by simple hydrothermal methods. Its dielectric performance and EM response were investigated. Efficient absorption, shielding performance, and energy conversion devices were customized. By tailoring the loading content, WSe 2 /Co 3 C can switch between EM absorption and EMI shielding. The maximum shielding effectiveness (SE) of WSe 2 /Co 3 C reached 36 dB, and high reflection loss (RL) of -60.28 dB and wide effective absorption bandwidth (EAB) of 6.16 GHz can be obtained at low thickness. The multiple EM attenuation mechanisms brought by the combination of two-dimensional (2D) WSe 2 and magnetic Co 3 C are considered to be the main reason for the enhanced EM attenuation ability. The WSe 2 /Co 3 C composite provides a viable candidate for developing multifunctional EM materials in 2-18 GHz.

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Author

Yuhang Zhu; Tingting Liu; Lin Li; Maosheng Cao

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)