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2D/2D coupled MOF/Fe composite metamaterials enable robust ultra–broadband microwave absorption

Author

Listed:
  • Ning Qu

    (Northwestern Polytechnical University)

  • Hanxu Sun

    (Northwestern Polytechnical University)

  • Yuyao Sun

    (Northwestern Polytechnical University)

  • Mukun He

    (Northwestern Polytechnical University)

  • Ruizhe Xing

    (Northwestern Polytechnical University)

  • Junwei Gu

    (Northwestern Polytechnical University)

  • Jie Kong

    (Northwestern Polytechnical University)

Abstract

The combination between macroscopic structure designs and microscopic material designs offers tremendous possibilities for the development of advanced electromagnetic wave (EMW) absorbers. Herein, we propose a metamaterial design to address persistent challenges in this field, including narrow bandwidth, low–frequency bottlenecks, and, particularly, the urgent issue of robustness (i.e., oblique, and polarized incidence). Our absorber features a semiconductive metal-organic framework/iron 2D/2D assembly (CuHT–FCIP) with abundant crystal/crystal heterojunctions and strong magneto-electric coupling networks. This design achieves remarkable EMW absorption across a broad range (2 to 40 GHz) at a thickness of just 9.3 mm. Notably, it maintains stable performance against oblique incidence (within 75°) and polarizations (both transverse electric and transverse magnetic). Furthermore, the absorber demonstrates high specific compressive strength (201.01 MPa·cm3·g−1) and low density (0.89 g·cm−3). This advancement holds promise for developing robust EMW absorbers with superior performance.

Suggested Citation

  • Ning Qu & Hanxu Sun & Yuyao Sun & Mukun He & Ruizhe Xing & Junwei Gu & Jie Kong, 2024. "2D/2D coupled MOF/Fe composite metamaterials enable robust ultra–broadband microwave absorption," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49762-4
    DOI: 10.1038/s41467-024-49762-4
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    References listed on IDEAS

    as
    1. Zhimeng Tang & Lei Xu & Cheng Xie & Lirong Guo & Libo Zhang & Shenghui Guo & Jinhui Peng, 2023. "Synthesis of CuCo2S4@Expanded Graphite with crystal/amorphous heterointerface and defects for electromagnetic wave absorption," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Muhan Choi & Seung Hoon Lee & Yushin Kim & Seung Beom Kang & Jonghwa Shin & Min Hwan Kwak & Kwang-Young Kang & Yong-Hee Lee & Namkyoo Park & Bumki Min, 2011. "A terahertz metamaterial with unnaturally high refractive index," Nature, Nature, vol. 470(7334), pages 369-373, February.
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