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Size-dependent radiative cooling power of glass-polymer metafilms

文献类型：期刊论文

作者Xie, Wenhui1,3; Fan, Zhenyu1,5; Tan, Gang2; Yang, Ronggui4; Wei, Yujie1,3
刊名MATERIALS & DESIGN
出版日期2025-06-01
卷号254页码:11
关键词Glass-polymer metamaterial Radiative cooling Size effect Solar reflection Net cooling power
ISSN号0264-1275
DOI10.1016/j.matdes.2025.114095
通讯作者Tan, Gang(tangang@zju.edu.cn) ; Yang, Ronggui(ronggui@hust.edu.cn) ; Wei, Yujie(yujie_wei@lnm.imech.ac.cn)
英文摘要Glass-polymer metamaterial, in which glass microspheres are randomly distributed in a polymer matrix, has been demonstrated to be a highly efficient daytime radiative cooling material that can be manufactured via roll-to-roll processes at scale and at low cost. In this work, we conducted a comprehensive study on the effect of size on the radiative cooling power of this hybrid metamaterial, examining the influence of microsphere size, film thickness, and microsphere volume fraction. Our results reveal that the net radiative cooling power increases rapidly with both the microsphere volume fraction and film thickness, although the rate of increase gradually diminishes. In particular, the glass-polymer hybrid metamaterial film, with a thickness as low as 50 mu m and containing approximately 8 % SiO2 microspheres, exhibits uniform and strong emission across the entire atmospheric window. Regarding the effect of microsphere size, the net radiative cooling power initially increases, then slightly decreases before finally reaching a steady plateau. Depending on the microsphere volume fraction and film thickness, the optimal microsphere radius ranges from 1.4 to 4.0 mu m. This study provides guidance for numerical calculations in designing similar thermal-control metamaterials.
WOS关键词DISPERSION ; SYSTEMS ; DESIGN
资助项目National Natural Sci-ence Foundation of China (NSFC) Basic Science Center for 'Multiscale Problems in Nonlinear Mechanics', China[11988102]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:001496455700003
资助机构National Natural Sci-ence Foundation of China (NSFC) Basic Science Center for 'Multiscale Problems in Nonlinear Mechanics', China
源URL[http://dspace.imech.ac.cn/handle/311007/101616]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Tan, Gang; Yang, Ronggui; Wei, Yujie
作者单位1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
2.Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou 310058, Zhejiang, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
4.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
5.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Wenhui,Fan, Zhenyu,Tan, Gang,et al. Size-dependent radiative cooling power of glass-polymer metafilms[J]. MATERIALS & DESIGN,2025,254:11.
APA Xie, Wenhui,Fan, Zhenyu,Tan, Gang,Yang, Ronggui,&Wei, Yujie.(2025).Size-dependent radiative cooling power of glass-polymer metafilms.MATERIALS & DESIGN,254,11.
MLA Xie, Wenhui,et al."Size-dependent radiative cooling power of glass-polymer metafilms".MATERIALS & DESIGN 254(2025):11.

入库方式： OAI收割

来源：力学研究所

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