Metal single-atom absorbers for electromagnetic wave attenuation: mechanism, regulation strategies and perspectives

Metal single-atom absorbers (M-SAAs) are redefining the frontier of electromagnetic wave (EMW) absorption by exploiting atomically dispersed sites, programmable coordination environments, and strong metal-support interactions. Unlike conventional absorbers, M-SAAs deliver extraordinary dielectric loss efficiency and broadband absorption, thereby opening new avenues for lightweight, wideband, and adaptive EM protection. Despite these advances, the intrinsic dielectric loss mechanisms and the structure–property correlations between coordination environments and dielectric loss remain poorly understood. This review provides the first atomic-scale mechanistic analysis of M-SAAs, offering a comprehensive dissection…

• NN
  National Natural Science Foundation of China

  Award: 52372283
• CP
  China Postdoctoral Science Foundation

  Award: 2023M740891