Hierarchical multi-dimensional nanostructures enabled by Cu/Cu 2+ -doped MoS 2 with synergistic polarization–conduction loss for broadband electromagnetic wave absorption

A multidimensional CNFs@Cu/Cu 2+ -doped MoS 2 (CMS) composite was fabricated, where Cu/Cu 2+ doping enhances electrical conductivity and introduces carbon defects and Cu interstitials, enabling synergistic polarization and conduction losses.