▎ 摘　　要

It is widely recognized that designing a special micro/nanostructure of microwave absorption materials for enhancing interface polarization benefits dielectric loss capability. In this work, a facile charge-driven self-assembly strategy is reported to prepare wrinkled reduced graphene oxide wrapped polymer -derived carbon (CS@rGO) microspheres. Noticeably, the unique three-dimensional (3D) multi-interface structure imparts CS@rGO microspheres with promoted microwave absorption capability. Adjusting the charge-driven self-assembly cycle times, the dielectric properties and impedance matching charac-teristics of the CS@rGO microspheres can be optimized. The minimum reflection loss (RLmin) of the sam-ple can reach up to -55.24 dB at 13.75 GHz and the effective absorption bandwidth (RL