A solution-processed radiative cooling glass

被引：227

作者：

Zhao, Xinpeng ^{[1
]}

Li, Tangyuan ^{[1
]}

Xie, Hua ^{[1
]}

Liu, He ^{[1
]}

Wang, Lingzhe ^{[2
]}

Qu, Yurui ^{[3
]}

Li, Stephanie C. ^{[1
]}

Liu, Shufeng ^{[1
]}

Brozena, Alexandra H. ^{[1
]}

Yu, Zongfu ^{[3
]}

Srebric, Jelena ^{[2
]}

Hu, Liangbing ^{[1
]}

机构：

[1] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[2] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

[3] Univ Wisconsin Madison, Dept Elect & Comp Engn, Madison, WI 53705 USA

来源：

SCIENCE | 2023年 / 382卷 / 6671期

关键词：

TEMPERATURE; COATINGS; EMITTER; PAINTS;

D O I：

10.1126/science.adi2224

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Passive daytime radiative cooling materials could reduce the energy needed for building cooling up to 60% by reflecting sunlight and emitting long-wave infrared (LWIR) radiation into the cold Universe (~3 kelvin). However, developing passive cooling structures that are both practical to manufacture and apply while also displaying long-term environmental stability is challenging. We developed a randomized photonic composite consisting of a microporous glass framework that features selective LWIR emission along with relatively high solar reflectance and aluminum oxide particles that strongly scatter sunlight and prevent densification of the porous structure during manufacturing. This microporous glass coating enables a temperature drop of ~3.5° and 4°C even under high-humidity conditions (up to 80%) during midday and nighttime, respectively. This radiative “cooling glass” coating maintains high solar reflectance even when exposed to harsh conditions, including water, ultraviolet radiation, soiling, and high temperatures. © 2023 American Association for the Advancement of Science. All rights reserved.

引用

页码：684 / 691

页数：8

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