Dynamic Infrared Radiation Regulator Enabling Positive and Reversible Modulation of Emissivity and Temperature

IF 6.4 3区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Materials Technologies Pub Date : 2024-07-15 DOI:10.1002/admt.202400522

Jingkai Huang, Liming Yuan, Jianming Liao, Yuetang Wang, Yang Liu, Chen Ji, Cheng Huang, Xiangang Luo

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引用次数: 0

Abstract

The ongoing advancements and growing adoption of infrared detection technology have spurred a tremendous amount of interest in thermal camouflage technology. Various approaches are employed to develop infrared camouflage materials capable of manipulating emissivity or surface temperature. However, the range of thermal radiation regulation implemented by these materials is still somewhat limited. In this paper, a combined emissivity and temperature regulation strategy that integrates a thermoelectric device (TED) and a thermochromic structure is proposed. By utilizing this strategy, it becomes possible to simultaneously control the surface temperature and the emissivity without needing additional complex excitation. As a concept demonstration, large tunabilities of 0.38 for long‐wave infrared (8–14 µm) emittance and 87 °C for surface temperature are observed, resulting in a prominent tunability of the thermal radiation temperature that is 15.4 °C greater than that of a conventional TED with constant emissivity. This work aims to introduce a new design paradigm for future thermal radiation management and camouflage techniques.

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实现发射率和温度正向可逆调节的动态红外辐射调节器

红外探测技术的不断进步和日益普及，激发了人们对热伪装技术的极大兴趣。人们采用各种方法开发能够调节发射率或表面温度的红外伪装材料。然而，这些材料的热辐射调节范围仍然有限。本文提出了一种将热电装置（TED）和热致变色结构相结合的发射率和温度调节策略。利用这种策略，就可以同时控制表面温度和发射率，而无需额外的复杂激励。作为概念演示，观察到长波红外（8-14 µm）发射率和表面温度分别有 0.38 ℃ 和 87 ℃ 的可调性，从而实现了热辐射温度的显著可调性，比辐射率恒定的传统 TED 高出 15.4 ℃。这项工作旨在为未来的热辐射管理和伪装技术引入一种新的设计范式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Materials Technologies Materials Science-General Materials Science

CiteScore

10.20

自引率

4.40%

发文量

566

期刊介绍： Advanced Materials Technologies Advanced Materials Technologies is the new home for all technology-related materials applications research, with particular focus on advanced device design, fabrication and integration, as well as new technologies based on novel materials. It bridges the gap between fundamental laboratory research and industry.