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

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…

• NU
  Northwestern University
• NN
  National Natural Science Foundation of China

  Awards: 52203101, 21875190, 52025034
• NP
  Northwestern Polytechnical University
• NK
  National Key Research and Development Program of China

  Award: 2022YFB3807101
• NS
  National Science Fund for Distinguished Young Scholars

  Award: 52025034