Environment-adaptive phase-separation-porous fluorofilm for highperformance passive radiation cooling  

作　　者：Weiming Tang Yong Li Xue Meng Shutao Wang Ziguang Zhao 

机构地区：[1]School of Future Technology,University of Chinese Academy of Sciences,Beijing 100049,China [2]CAS Key Laboratory of Bio-inspired Materials and Interfacial Science,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [3]CAS Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Nano Research》2024年第6期5636-5644,共9页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(Nos.22035008,22275183,21972155,and 21988102);the National Key R&D Program of China(Nos.2019YFA0709300 and 2022YFE0201200);International Partnership Program of Chinese Academy of Sciences(No.1A1111KYSB20200010).

摘　　要：Passive radiative cooling is widely recognized as an environmentally sustainable method for achieving significant cooling effects.However,the mechanical properties and environmental adaptability of current radiative cooling materials are not sufficient to maintain high cooling performance in external environments.Here we reported an environment-adaptive phase-separation-porous fluorofilm for high-performance passive radiation cooling.Compared to the homogenous fluoro-porous network with limited scattering efficiencies,we modulated the porous structure of the fluorofilm to achieve a strong emissivity of 95.2%(8-13μm)and a high reflectivity of 97.1%(0.3-2.5μm).The fluorofilm demonstrates a temperature drop of 10.5°C and an average cooling power of 81 W·m^(−2)under a sunlight power of 770 W·m^(−2).The high mechanical performance and environmental adaptability of fluorofilms are also exhibited.Considering its significant radiative cooling capability and robust environmental adaptability,the fluorofilm is expected to have a promising future in radiative temperature regulation.

关 键 词：fluorofilm passive radiation cooling porous optimization thermal regulation 

分 类 号：TL343[核科学技术—核技术及应用]