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- Title
A dual-selective thermal emitter with enhanced subambient radiative cooling performance.
- Authors
Wu, Xueke; Li, Jinlei; Xie, Fei; Wu, Xun-En; Zhao, Siming; Jiang, Qinyuan; Zhang, Shiliang; Wang, Baoshun; Li, Yunrui; Gao, Di; Li, Run; Wang, Fei; Huang, Ya; Zhao, Yanlong; Zhang, Yingying; Li, Wei; Zhu, Jia; Zhang, Rufan
- Abstract
Radiative cooling is a zero-energy technology that enables subambient cooling by emitting heat into outer space (~3 K) through the atmospheric transparent windows. However, existing designs typically focus only on the main atmospheric transparent window (8–13 μm) and ignore another window (16–25 μm), under-exploiting their cooling potential. Here, we show a dual-selective radiative cooling design based on a scalable thermal emitter, which exhibits selective emission in both atmospheric transparent windows and reflection in the remaining mid-infrared and solar wavebands. As a result, the dual-selective thermal emitter exhibits an ultrahigh subambient cooling capacity (~9 °C) under strong sunlight, surpassing existing typical thermal emitters (≥3 °C cooler) and commercial counterparts (as building materials). Furthermore, the dual-selective sample also exhibits high weather resistance and color compatibility, indicating a high practicality. This work provides a scalable and practical radiative cooling design for sustainable thermal management. Radiative cooling is a sustainable subambient cooling technology. Here, authors show a scalable and practical design of a dual-selective thermal emitter that is shown to have enhanced radiative cooling potential over existing typical designs.
- Subjects
SUSTAINABLE design; OUTER space; CONSTRUCTION materials; COOLING
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-45095-4