@article{Shi2026, 
author = {Jiahuan Shi and Juhua Luo and Shuangshuang Mao and Runzhi Wang and Huajun Zhao and Yu Xie},
title = {Orbital hybridization induced polarization loss for broadband electromagnetic wave absorption},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {9},
pages = {94908734},
keywords = {broadband, hybridization, gradient structure, electromagnetic wave absorption (EMWA), metal organic frameworks (MOF)},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908734},
doi = {10.26599/NR.2026.94908734},
abstract = {Orbital hybridization has proven to be an effective strategy for tailoring electromagnetic wave absorption (EMWA) performance. However, achieving precise control over such hybridization remains challenging. In this study, spherical NiTe@NC (NTC) composites were synthesized through a combined hydrothermal method, polymerization reaction, and high-temperature tellurization. By varying the mass ratio of nickel-based metal-organic framework (Ni-MOF) to polydopamine (PDA), the EMWA performance of the composite was adjusted. At an optimal Ni-MOF to PDA mass ratio of 1:4 and a filler loading of 30 wt.%, the composite exhibits a minimum reflection loss (RLmin) value of −30.66 dB at a thickness of 1.73 mm and achieved an effective absorption bandwidth (EAB) value of 6.80 GHz at 1.96 mm. The Density functional theory (DFT) results confirm strong d-p orbital hybridization between the Ni 3d, Te 5p, and N 2p orbitals. The excellent EMWA capability stems from the synergistic combination of conductive loss, polarization loss, and magnetic loss. Furthermore, by designing a gradient multilayer periodic array based on NTC, the EAB could be broadened to 12.72 GHz (5.28–18 GHz). Radar cross-section (RCS) simulation results show that the RCS of the NTC-2 composite is reduced by 19.06 dB·m2 compared with that of a perfect electric conductor. Overall, this work provides insights into the development of hybridization induced broadband EMWA materials.}
}