Conductance Reinforced Relaxation Attenuation with Strong Metal‐N Coordination in Multivariate π‐Conjugated MOFs for Integrated Radar‐Infrared Camouflage

Abstract π‐conjugated metal‐organic frameworks (MOFs) have emerged as promising candidates for electromagnetic wave (EMW) absorption, owning to their high conductivity and versatile structural tunability. Nevertheless, the effective control over their dielectric properties is a challenge. Herein, the charge carrier migration in π‐conjugated MOFs is harnessed to significantly amplify the electromagnetic response, where the strengthened atom coordination can activate a distinctive conductance‐reinforced attenuation mechanism. This results in finely calibrated EMW absorption characteristics, including a wide effective absorption bandwidth of 6.0 GHz at mere 2 mm, a minimum reflection loss of −46.7 dB at 3.5 mm,…

• NN
  National Natural Science Foundation of China

  Awards: 12327804, 52231007, 22405050, T2321003, 22088101, 52372289, 52102368
• SA
  Science and Technology Commission of Shanghai Municipality

  Award: 24ZR1406400
• AS
  Aeronautical Science Foundation of China

  Awards: 2024M0730P9001, 202400180P9001