All‐Solid‐State Variable Emissivity Devices with Excellent Smart Thermal Control Performance

IF 9.8 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews Pub Date : 2025-04-29 DOI:10.1002/lpor.202402082

Gengxin Yao, Yingjun Xiao, Mingjun Chen, Xin Fu, Hongkang Miao, Lingtong Wang, Shuokun Sun, Zaiteng Zhai, Liang Chang, Xiang Zhang, Yao Li

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引用次数: 0

Abstract

Variable emissivity devices (VEDs) are capable of controlling changes in emissivity through an external electric field, which has great application prospects in the field of smart thermal management and multispectral camouflage. However, the narrow working band, limited emissivity modulation, and high solar absorptivity of VEDs hinder their applications. Herein, an all‐solid‐state VED with an Ag/HfO2/ITO Fabry‐Perot (F‐P) cavity structure is designed and fabricated with a low solar absorptivity (0.19 at 250–2500 nm), a high infrared (IR) emissivity modulation (0.33 at 2.5–25 µm). Meanwhile, it has a wide temperature control range (265–346 K) and (317–405 K) on the back and sunny side, respectively. The device's temperature regulation can be greatly improved by expanding the emissivity control amplitude and lowering the emissivity value. Maintaining a low absorptivity in the solar band can expand the application possibilities and usage scenarios of VEDs. This VED provides opportunities for applications such as infrared camouflage and smart thermal control of spacecraft.

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具有优异智能热控制性能的全固态可变发射率器件

变发射率装置（VEDs）能够通过外加电场控制发射率的变化，在智能热管理和多光谱伪装领域具有广阔的应用前景。但其窄带工作、有限的发射率调制和较高的太阳吸收率阻碍了其应用。本文设计并制作了一种具有Ag/HfO2/ITO法布里-珀罗（F - P）腔结构的全固态发光二极管，具有低太阳吸收率（在250-2500 nm处为0.19），高红外（IR）发射率调制（在2.5-25µm处为0.33）。同时背面温度控制范围265-346 K，正面温度控制范围317-405 K。通过扩大发射率控制幅度和降低发射率值，可以大大提高器件的温度调节能力。在太阳波段保持较低的吸收率可以扩大ved的应用可能性和使用场景。这种VED为航天器的红外伪装和智能热控制等应用提供了机会。

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

Laser & Photonics Reviews 物理-光学

CiteScore

14.20

自引率

5.50%

发文量

314

审稿时长

2 months

期刊介绍： Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.