Visibly transparent multifunctional camouflage coating with efficient thermal management

doi:10.1364/OL.494539

CIOMP OpenIR

	Visibly transparent multifunctional camouflage coating with efficient thermal management
	S. K. Chamoli and W. Li
	2023
发表期刊	Optics Letters
ISSN	01469592
卷号	48 期号:16 页码:4340-4343
摘要	Camouflage technology has attracted growing interest in many thermal applications. In particular, high-temperature infrared (IR) camouflage is crucial to the effective concealment of high-temperature objects but remains a challenging issue, as the thermal radiation of an object is proportional to the fourth power of temperature. Here, we proposed a coating to demonstrate high-temperature IR camouflage with efficient thermal management. This coating is a combination of hyperbolic metamaterial (HMM), gradient epsilon near zero (G-ENZ) material, and polymer. HMM makes the coating transparent in the visible range (300–700 nm) and highly reflective in the IR region, so it can serve as a thermal camouflage in the IR. G-ENZ and polymer support BE mode (at higher angles ∼50° to 90° in the 11–14 µm atmospheric window) and vibrational absorption band (in 5–8 µm non-atmospheric for all angles), respectively. So it is possible to achieve efficient thermal management through radiative cooling. We calculate the temperature of the object’s surface, considering the emissivity characteristics of the coating for different heating temperatures. A combination of silica aerogel and coating can significantly reduce the surface temperature from 2000 K to 750 K. The proposed coating can also be used in the visible transparent radiative cooling due to high transmission in the visible, high reflection in the near-IR (NIR), and highly directional emissivity in the atmospheric window at higher angles, and can therefore potentially be used as a smart window in buildings and vehicles. Finally, we discuss one more potential future application of such a multifunctional coating in water condensation and purification. © 2023 Optica Publishing Group.
DOI	10.1364/OL.494539
URL	查看原文
收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67355
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S. K. Chamoli and W. Li. Visibly transparent multifunctional camouflage coating with efficient thermal management[J]. Optics Letters,2023,48(16):4340-4343.
APA	S. K. Chamoli and W. Li.(2023).Visibly transparent multifunctional camouflage coating with efficient thermal management.Optics Letters,48(16),4340-4343.
MLA	S. K. Chamoli and W. Li."Visibly transparent multifunctional camouflage coating with efficient thermal management".Optics Letters 48.16(2023):4340-4343.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Visibly transparent （3745KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载