Selective Emission Fabric for Indoor and Outdoor Passive Radiative Cooling in Personal Thermal Management

IF 26.6 1区材料科学 Q1 Engineering Nano-Micro Letters Pub Date : 2025-03-19 DOI:10.1007/s40820-025-01713-4

Haijiao Yu, Jiqing Lu, Jie Yan, Tian Bai, Zhaoxuan Niu, Bin Ye, Wanli Cheng, Dong Wang, Siqi Huan, Guangping Han

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引用次数: 0

Abstract

Radiative cooling fabric creates a thermally comfortable environment without energy input, providing a sustainable approach to personal thermal management. However, most currently reported fabrics mainly focus on outdoor cooling, ignoring to achieve simultaneous cooling both indoors and outdoors, thereby weakening the overall cooling performance. Herein, a full-scale structure fabric with selective emission properties is constructed for simultaneous indoor and outdoor cooling. The fabric achieves 94% reflectance performance in the sunlight band (0.3–2.5 µm) and 6% in the mid-infrared band (2.5–25 µm), effectively minimizing heat absorption and radiation release obstruction. It also demonstrates 81% radiative emission performance in the atmospheric window band (8–13 µm) and 25% radiative transmission performance in the mid-infrared band (2.5–25 μm), providing 60 and 26 W m⁻² net cooling power outdoors and indoors. In practical applications, the fabric achieves excellent indoor and outdoor human cooling, with temperatures 1.4–5.5 °C lower than typical polydimethylsiloxane film. This work proposes a novel design for the advanced radiative cooling fabric, offering significant potential to realize sustainable personal thermal management.

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辐射降温织物可在不输入能源的情况下创造一个热舒适的环境，为个人热管理提供了一种可持续的方法。然而，目前报道的大多数织物主要侧重于室外降温，忽视了室内外同时降温，从而削弱了整体降温性能。本文构建了一种具有选择性发射特性的全尺寸结构织物，可实现室内外同时降温。这种织物在日光波段（0.3-2.5 微米）的反射率达到 94%，在中红外波段（2.5-25 微米）的反射率达到 6%，有效地减少了吸热和辐射释放障碍。它还在大气窗口波段（8-13 微米）具有 81% 的辐射发射性能，在中红外波段（2.5-25 微米）具有 25% 的辐射传输性能，可在室外和室内提供 60 和 26 W m-2 的净冷却功率。在实际应用中，这种织物可实现出色的室内外人体降温效果，温度比典型的聚二甲基硅氧烷薄膜低 1.4-5.5 °C。这项研究为先进的辐射冷却织物提出了一种新颖的设计，为实现可持续的个人热管理提供了巨大的潜力。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.