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. 2021 Dec 6;14:16. doi: 10.1007/s40820-021-00743-y

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — Directional EMI shielding mechanism. a The average SE_T of Ni@MF/CNT-75/PBAT composites with the incident EM wave from different sample sides. b ΔSE_T and SE_T enhancement of Ni@MF/CNT-75/PBAT composites when the EM wave is incident from different sample sides. c The average SE_A and d coefficients of Ni@MF/CNT-75/PBAT composites with the incident EM wave from different sample sides. e, f Schematic diagram of the directional EMI shielding mechanism for step-wise asymmetric Ni@MF/CNT-75/PBAT composites