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具有可见光透明特性的动态机械响应红外热辐射调制器件

A Dynamic Mechanically Responsive Infrared Thermal Radiation Modulator with Visible Transparency
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摘要 基于机械响应材料的红外热辐射调制器件具有成本低、结构简单、操作方便等优点。传统基于机械响应的红外热辐射调制器件通常是在弹性基体上构建金属薄膜,进而通过薄膜层的开裂与闭合实现红外热辐射的动态调制。然而,传统红外热辐射动态调控器件通常在可见光波段是不透明的,这极大地限制了其在可见-红外双波段伪装等领域的应用。本研究采用磁控溅射方式在可见-红外宽波段透明弹性聚合物上沉积ITO薄膜,制备了具有可见光透明、红外波段具有高反射特性的热辐射调制器件。在机械拉伸条件下,器件在10μm处的红外反射率调控范围为40%~77%,550 nm处的可见光透射率大于82%。 Infrared thermal radiation modulators based on mechanically responsive materials offer advantages such as low cost,simple structure,and easy operation.Traditional infrared thermal radiation modulators based on mechanical responses typically involve constructing metal films(such as gold,aluminum,copper,etc.)on an elastic substrate,which modulate infrared thermal radiation dynamically through the cracking and closing of the film layers.However,traditional dynamic infrared modulators are generally opaque in the visible light spectrum,which greatly limits their applications in fields like visible-infrared dual-band camouflage.In this study,ITO films were deposited on transparent elastic polymers that are transparent across a wide visible-infrared spectrum using a magnetron sputtering technique,creating thermal radiation modulators that are transparent in the visible light spectrum and highly reflective in the infrared spectrum.Under mechanical stretching,the device exhibits an infrared reflectance range of 40%−77%at the 10μm and a visible light transmittance of over 82%at 550 nm.
作者 李鑫锋 李龙男 李炜 LI Xinfeng;LI Longnan;LI Wei(GPL Photonics Laboratory,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处 《发光学报》 EI CAS CSCD 北大核心 2024年第8期1334-1342,共9页 Chinese Journal of Luminescence
基金 国家自然科学基金(11075026)。
关键词 红外调制器 机械响应 柔性 可见透明 infrared modulator mechanical response flexibility visible transparency
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