Citation: Jinkun Liu, Xuelian Yang, Wenxuan Chen, Pingan Zhu, Guanglei Wu, Jing Zheng, Xu Hou. Hierarchical work function programming for optimizing interfacial polarization in electromagnetic wave absorber[J]. Chinese Chemical Letters, ;2025, 36(10): 111293. doi: 10.1016/j.cclet.2025.111293 shu

Hierarchical work function programming for optimizing interfacial polarization in electromagnetic wave absorber

Jinkun Liu ^a ,
Xuelian Yang ^b ,
Wenxuan Chen ^a ,
Pingan Zhu ^c ,
Guanglei Wu ^{d, *,} ,
Jing Zheng ^{a, *,} ,
Xu Hou ^{a, b, e}

a.
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
b.
Institute of Artificial Intelligence, Xiamen University, Xiamen 361005, China
c.
Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China
d.
Institute of Materials for Energy and Environment, State Key Laboratory Breeding Base of New Fiber Materials and Modern Textile, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
e.
Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China

wuguanglei@mail.xjtu.edu.cn

zjing@xmu.edu.cn

Received Date: 27 February 2025
Revised Date: 8 May 2025
Accepted Date: 9 May 2025
Available Online: 9 May 2025

Figures(4)

The development of next-generation electromagnetic wave (EMW) absorbers requires a shift in interface design. By employing hierarchical work function programming, we propose an approach to tune interfacial polarization dynamics. This method utilizes multi-gradient work functions to guide carrier migration and polarization effectively, thereby enhancing energy dissipation under alternating electromagnetic fields. Here, we constructed a 1T/2H-MoS₂/PPy/VS₂ composite absorber with integrated gradient interfaces. The composite achieved a powerful absorption (RL_min) of -58.59 dB at 2.3 mm, and an effective absorption bandwidth (EAB) of 7.44 GHz at 2.5 mm, demonstrating improved broadband absorption. Radar cross-section (RCS) simulations show an EMW loss of -7.2 dB m² at 0°, highlighting its potential for stealth and communication applications. This study introduces hierarchical work function programming as a promising strategy in EMW absorber design, contributing to advancements in material performance and functionality.
- Work function,
- Interface polarization,
- 1T/2H-MoS₂/PPy/VS₂ composites,
- Electromagnetic wave absorption
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