High-permittivity Sb2S3 single-crystal nanorods as a brand-new choice for electromagnetic wave absorption

The application of antimony sulfide (Sb2S3) has been limited mainly to the energy storage and photoelectric conversion fields. However, in this work, Sb2S3 is extended field electromagnetic (EM) wave absorption for first time. High-permittivity single-crystal nanorods were prepared successfully exhibited excellent performance, with a low reflection loss −65.9 dB (13.0 GHz, 3.8 mm) an ultra-wide effective bandwidth 9.5 GHz (8.5–18.0 4.1 mm). After excluding general mechanisms, including conductive losses, interfacial polarization, dipole distinctive volume polarization affected by shape anisotropy was proposed. This work not only meets challenge single-component dielectric material design but also introduces new concept construction efficient EM material.