Scalable thermochromic smart windows with passive radiative cooling regulation

被引：585
|
作者：
Wang, Shancheng [1 ,2 ]
Jiang, Tengyao [3 ,4 ]
Meng, Yun [1 ,2 ]
Yang, Ronggui [5 ]
Tan, Gang [3 ]
Long, Yi [1 ,2 ,6 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[2] Singapore HUJ Alliance Res & Enterprise SHARE, Campus Res Excellence & Technol Enterprise CREATE, Singapore 138602, Singapore
[3] Univ Wyoming, Dept Civil & Architectural Engn & Construct Manag, Laramie, WY 82071 USA
[4] Nanjing Tech Univ, Sch Environm Sci & Engn, Nanjing 211816, Jiangsu, Peoples R China
[5] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Hubei, Peoples R China
[6] Sino Singapore Int Joint Res Inst SSIJRI, Guangzhou 510000, Peoples R China
来源：
SCIENCE | 2021年 / 374卷 / 6574期
基金：
新加坡国家研究基金会;
关键词：
VANADIUM DIOXIDE; ENERGY SAVINGS; VO2; TRANSITION;
D O I：
10.1126/science.abg0291
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：
Radiative cooling materials spontaneously radiate long-wave infrared (LWIR) to the cold outer space, providing cooling power that is preferred in hot seasons. Radiative cooling has been widely explored for walls and roofs but rarely for windows, which are one of the least energy-efficient parts of buildings. We fabricated scalable smart windows using a solution process giving different emissivity (epsilon) at high (epsilon(LWIR-H) of 0.61) and low (epsilon(LWIR-L) of 0.21) temperatures to regulate radiative cooling automatically while maintaining luminous transparency and near-infrared (NIR) modulation. These passive and independent visible-NIR-LWIR regulated smart windows are capable of dynamic radiative cooling for self-adapting applications across different climate zones.
引用
收藏
页码：1501 / +
页数：51
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