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DOI | 10.1126/science.aai7899 |
Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling | |
Zhai, Yao1; Ma, Yaoguang1; David, Sabrina N.2; Zhao, Dongliang1; Lou, Runnan3; Tan, Gang4; Yang, Ronggui1; Yin, Xiaobo1,2 | |
2017-03-10 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6329 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Passive radiative cooling draws heat from surfaces and radiates it into space as infrared radiation to which the atmosphere is transparent. However, the energy density mismatch between solar irradiance and the low infrared radiation flux from a near-ambient-temperature surface requires materials that strongly emit thermal energy and barely absorb sunlight. We embedded resonant polar dielectric microspheres randomly in a polymeric matrix, resulting in a metamaterial that is fully transparent to the solar spectrum while having an infrared emissivity greater than 0.93 across the atmospheric window. When backed with a silver coating, the metamaterial shows a noontime radiative cooling power of 93 watts per square meter under direct sunshine. More critically, we demonstrated high-throughput, economical roll-to-roll manufacturing of the metamaterial, which is vital for promoting radiative cooling as a viable energy technology. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396348900041 |
WOS关键词 | OPTICS ; FILMS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195578 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA; 2.Univ Colorado, Mat Sci & Engn Program, Boulder, CO 80309 USA; 3.Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA; 4.Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA |
推荐引用方式 GB/T 7714 | Zhai, Yao,Ma, Yaoguang,David, Sabrina N.,et al. Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling[J]. SCIENCE,2017,355(6329). |
APA | Zhai, Yao.,Ma, Yaoguang.,David, Sabrina N..,Zhao, Dongliang.,Lou, Runnan.,...&Yin, Xiaobo.(2017).Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling.SCIENCE,355(6329). |
MLA | Zhai, Yao,et al."Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling".SCIENCE 355.6329(2017). |
条目包含的文件 | 条目无相关文件。 |
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