气候变化领域集成服务门户(CCPortal): A polydimethylsiloxane-coated metal structure for all-day radiative cooling

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DOI	10.1038/s41893-019-0348-5
	A polydimethylsiloxane-coated metal structure for all-day radiative cooling
	Zhou L.; Song H.; Liang J.; Singer M.; Zhou M.; Stegenburgs E.; Zhang N.; Xu C.; Ng T.; Yu Z.; Ooi B.; Gan Q.
发表日期	2019
ISSN	2398-9629
起始页码	718
结束页码	724
卷号	2 期号:8
英文摘要	Radiative cooling is a passive cooling strategy with zero consumption of electricity that can be used to radiate heat from buildings to reduce air-conditioning requirements. Although this technology can work well during optimal atmospheric conditions at night, it is essential to achieve efficient cooling during the daytime when peak cooling demand actually occurs. Here we report an inexpensive planar polydimethylsiloxane (PDMS)/metal thermal emitter thin film structure, which was fabricated using a fast solution coating process that is scalable for large-area manufacturing. By performing tests under different environmental conditions, temperature reductions of 9.5 °C and 11.0 °C were demonstrated in the laboratory and an outside environment, respectively, with an average cooling power of ~120 W m– 2 for the thin film thermal emitter. In addition, a spectral-selective structure was designed and implemented to suppress the solar input and control the divergence of the thermal emission beam. This enhanced the directionality of the thermal emissions, so the emitter’s cooling performance was less dependent on the surrounding environment. Outside experiments were performed in Buffalo, New York, realizing continuous all-day cooling of ~2–9 °C on a typical clear sunny day at Northern United States latitudes. This practical strategy that cools without electricity input could have a significant impact on global energy consumption. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Air conditioning; Energy utilization; Polydimethylsiloxane; Silicones; Thin films; Atmospheric conditions; Cooling performance; Environmental conditions; Polydimethylsiloxane PDMS; Surrounding environment; Temperature reduction; Thermal emissions; Thin-film structure; Radiative Cooling
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163598
作者单位	Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY, United States; KAUST Nanophotonics Lab, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia; Department of Electrical and Computer Engineering, University of Wisconsin, Madison, WI, United States; School of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou, China
推荐引用方式 GB/T 7714	Zhou L.,Song H.,Liang J.,et al. A polydimethylsiloxane-coated metal structure for all-day radiative cooling[J],2019,2(8).
APA	Zhou L..,Song H..,Liang J..,Singer M..,Zhou M..,...&Gan Q..(2019).A polydimethylsiloxane-coated metal structure for all-day radiative cooling.Nature Sustainability,2(8).
MLA	Zhou L.,et al."A polydimethylsiloxane-coated metal structure for all-day radiative cooling".Nature Sustainability 2.8(2019).