A Solution-Processed Inorganic Emitter with High Spectral Selectivity for Efficient Subambient Radiative Cooling in Hot Humid Climates

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 12 vom: 03. März, Seite e2109350
1. Verfasser: Lin, Chongjia (VerfasserIn)
Weitere Verfasser: Li, Yang, Chi, Cheng, Kwon, Ye Seul, Huang, Jingyuan, Wu, Zuoxu, Zheng, Jiongzhi, Liu, Gongze, Tso, Chi Yan, Chao, Christopher Y H, Huang, Baoling
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article cooling temperature hot humid climates inorganic emitters selective thermal emission subambient radiative cooling
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520 |a Daytime radiative cooling provides an eco-friendly solution to space cooling with zero energy consumption. Despite significant advances, most state-of-the-art radiative coolers show broadband infrared emission with low spectral selectivity, which limits their cooling temperatures, especially in hot humid regions. Here, an all-inorganic narrowband emitter comprising a solution-derived SiOx Ny layer sandwiched between a reflective substrate and a self-assembly monolayer of SiO2 microspheres is reported. It shows a high and diffusive solar reflectance (96.4%) and strong infrared-selective emittance (94.6%) with superior spectral selectivity (1.46). Remarkable subambient cooling of up to 5 °C in autumn and 2.5 °C in summer are achieved under high humidity without any solar shading or convection cover at noontime in a subtropical coastal city, Hong Kong. Owing to the all-inorganic hydrophobic structure, the emitter shows outstanding resistance to ultraviolet and water in long-term durability tests. The scalable-solution-based fabrication renders this stable high-performance emitter promising for large-scale deployment in various climates 
650 4 |a Journal Article 
650 4 |a cooling temperature 
650 4 |a hot humid climates 
650 4 |a inorganic emitters 
650 4 |a selective thermal emission 
650 4 |a subambient radiative cooling 
700 1 |a Li, Yang  |e verfasserin  |4 aut 
700 1 |a Chi, Cheng  |e verfasserin  |4 aut 
700 1 |a Kwon, Ye Seul  |e verfasserin  |4 aut 
700 1 |a Huang, Jingyuan  |e verfasserin  |4 aut 
700 1 |a Wu, Zuoxu  |e verfasserin  |4 aut 
700 1 |a Zheng, Jiongzhi  |e verfasserin  |4 aut 
700 1 |a Liu, Gongze  |e verfasserin  |4 aut 
700 1 |a Tso, Chi Yan  |e verfasserin  |4 aut 
700 1 |a Chao, Christopher Y H  |e verfasserin  |4 aut 
700 1 |a Huang, Baoling  |e verfasserin  |4 aut 
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773 1 8 |g volume:34  |g year:2022  |g number:12  |g day:03  |g month:03  |g pages:e2109350 
856 4 0 |u http://dx.doi.org/10.1002/adma.202109350  |3 Volltext 
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