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dc.contributor.authorHan, Dien_US
dc.contributor.authorFei, Jipengen_US
dc.contributor.authorMandal, Jyotirmoyen_US
dc.contributor.authorLiu, Zhixinen_US
dc.contributor.authorLi, Hongen_US
dc.contributor.authorRaman, Aaswath P.en_US
dc.contributor.authorNg, Bing Fengen_US
dc.identifier.citationHan, D., Fei, J., Mandal, J., Liu, Z., Li, H., Raman, A. P. & Ng, B. F. (2022). Sub-ambient radiative cooling under tropical climate using highly reflective polymeric coating. Solar Energy Materials and Solar Cells, 240, 111723-.
dc.description.abstractWhile passive radiative cooling has shown great potential in temperate regions in lowering surface temperatures, its cooling performance under tropical climate that is characterised by high solar irradiance and humidity still lacks exploration. Herein, we adopt a highly reflective polymeric coating with BaSO4 particles dispersed in P(VdF-HFP) matrix for radiative cooling in the tropics. Through the strong Mie scattering of sunlight and intrinsic bond vibration, the substrate-independent average solar reflectance and infrared emittance within the 8–13 μm atmospheric window could reach 97% and 94.2%, respectively. For the first time, surfaces could maintain sub-ambient temperatures under direct exposure to the sky and surroundings even when the solar intensity was 1000 W/m2 and downwelling atmospheric radiation was 480 W/m2, while separately achieving 2 °C below ambient during night-time with an effective cooling power of 54.4 W/m2. With a scalable fabrication-process, our cost-effective single-layer coating can be easily applied to diverse substrates, which is suitable for real-world applications in the tropics.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.relation.ispartofSolar Energy Materials and Solar Cellsen_US
dc.rights© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (
dc.subjectEngineering::Materials::Functional materialsen_US
dc.subjectEngineering::Mechanical engineering::Alternative, renewable energy sourcesen_US
dc.subjectEngineering::Mechanical engineeringen_US
dc.titleSub-ambient radiative cooling under tropical climate using highly reflective polymeric coatingen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.description.versionPublished versionen_US
dc.subject.keywordsSub-Ambient Radiative Coolingen_US
dc.subject.keywordsPolymeric Coatingen_US
dc.description.acknowledgementThis study was funded by the Singapore Ministry of Education through grant no. 2018-T1-001-070.en_US
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