@article{Pan2026, 
author = {Yuelei Pan and Kailong Yu and Pengze Li and Jinhua Li and Guangbin Ji and Haibo Zeng and Zhesheng Chen},
title = {Fe-based multi-interfacial engineering composites for broadband electromagnetic wave absorption},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {2},
pages = {94908326},
keywords = {heterostructures, electromagnetic wave absorption, multifunctional materials, electromagnetic simulation},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908326},
doi = {10.26599/NR.2026.94908326},
abstract = {Controlling phase composition and interfacial structures in electromagnetic waves (EMWs) absorbing composites is a promising approach to enhance the absorption efficiency and integrate multifunctional properties. Here, we report the fabrication of iron-based nanostructured heterojunctions on reduced graphene oxide (rGO) via freeze-drying and controlled thermal treatment, enabling precise modulation of iron oxide phases. Among the obtained composites, the Fe3O4/Fe@rGO hybrid exhibited the strongest EMWs absorption. This enhancement originates from multiple loss mechanisms at the Fe3O4/Fe heterointerfaces, yielding a minimum reflection loss of −66.4 dB at 2.7 mm and an effective absorption bandwidth (EAB) of 7.16 GHz. Furthermore, a metal surface designed via full-wave simulations broadens the EAB to 15.3 GHz through optimized impedance and multi-resonance. The flexible Fe3O4/Fe@rGO film demonstrated high-performance infrared stealth, hydrophobicity, and efficient electromagnetic interference shielding. Density functional theory calculations revealed pronounced charge transfer at Fe3O4/Fe interfaces. Radar cross-section simulations further confirmed the material’s potential to substantially reduce detectability. This work presents a robust design strategy for next-generation electromagnetic protection materials with tunable composition, strong EMWs absorption, and integrated multifunctionality.}
}