首页|Multispectral smart window:Dynamic light modulation and electromagnetic microwave shielding

Multispectral smart window:Dynamic light modulation and electromagnetic microwave shielding

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  • 国家科技期刊平台
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  • NSTL
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A novel multispectral smart window has been proposed,which features dynamic modulation of light transmittance and effective shielding against electromagnetic microwave radiation.This design integrates liquid crystal dynamic scattering and dye doping techniques,enabling the dual regulation of transmittance and scattering within a single-layer smart window.Additionally,the precise control of conductive film thickness ensures the attainment of robust microwave signal shielding.We present a theoretical model for ion movement in the presence of an alternating electric field,along with a novel approach to manipulate negative dielectric constant.The proposed model successfully enables a rapid transition between light transparent,absorbing and haze states,with an optimum drive frequency adjustable to approximately 300 Hz.Furthermore,the resistive design of the conductive layer effectively mitigates microwave radiation within the 2-18 GHz range.These findings offer an innovative perspective for future advancements in environmental construction.

Ruicong Zhang、Zicheng Song、Wenxin Cao、Gang Gao、Lei Yang、Yurong He、Jiecai Han、Zhibo Zhang、Tianyu Wang、Jiaqi Zhu

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Center for Composite Materials and Structures,Harbin Institute of Technology,Harbin 150080,China

Zhengzhou Research Institute,Harbin Institute of Technology,Zhengzhou 450018,China

Research Center of Analysis and Measurement,Harbin Institute of Technology,Harbin 150080,China

School of Energy Science & Engineering,Harbin Institute of Technology,Harbin 150080,China

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National Key Research and Development Program of ChinaNational Science Fund for Distinguished Young ScholarsState Key Program of National Natural Science of ChinaNational Youth Science Funds of ChinaKey Research and Development Program of Heilongjiang ProvinceKey Research and Development Program of Heilongjiang ProvinceFundamental Research Funds for the Central UniversitiesMajor Program of Harbin Institute of TechnologyFundamental Research Funds for the Central UniversitiesNational Youth Science Funds of China

2023YFB3811600516252015203200452102039GA21D0012022ZX06C05HIT.OCEF.20220112023FRFK010022022FRFK06002652302172

2024

10.1038/s41377-024-01541-y

光:科学与应用(英文版)
中国科学院长春光学精密机械与物理研究所

光:科学与应用(英文版)

CSTPCD
ISSN：2095-5545
年,卷(期)：2024.13(10)