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Recent Progress in Daytime Radiative Cooling: Is It the Air Conditioner of the Future?

Faculty of Built Environment, University of New South Wales, Sydney, NSW 2052, Australia
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Buildings 2018, 8(12), 168; https://doi.org/10.3390/buildings8120168
Received: 4 November 2018 / Revised: 22 November 2018 / Accepted: 28 November 2018 / Published: 30 November 2018
Radiative cooling is a well-researched area. For many years, surfaces relying on radiative cooling failed to exhibit a sub-ambient surface temperature under the sun because of the limited reflectance in the solar spectrum and the reduced absorptivity in the atmospheric window. The recent impressive developments in photonic nanoscience permitted to produce photonic structures exhibiting surface temperatures much below the ambient temperature. This paper aims to present and analyze the main recent achievements concerning daytime radiative cooling technologies. While the conventional radiative systems are briefly presented, the emphasis is given on the various photonic radiative structures and mainly the planar thin film radiators, metamaterials, 2 and 3D photonic structures, polymeric photonic technologies, and passive radiators under the form of a paint. The composition of each structure, as well as its experimental or simulated thermal performance, is reported in detail. The main limitations and constraints of the photonic radiative systems, the proposed technological solutions, and the prospects are presented and discussed. View Full-Text
Keywords: daytime radiative cooling; photonic coolers; plasmonic coolers daytime radiative cooling; photonic coolers; plasmonic coolers
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MDPI and ACS Style

Santamouris, M.; Feng, J. Recent Progress in Daytime Radiative Cooling: Is It the Air Conditioner of the Future? Buildings 2018, 8, 168. https://doi.org/10.3390/buildings8120168

AMA Style

Santamouris M, Feng J. Recent Progress in Daytime Radiative Cooling: Is It the Air Conditioner of the Future? Buildings. 2018; 8(12):168. https://doi.org/10.3390/buildings8120168

Chicago/Turabian Style

Santamouris, Mattheos, and Jie Feng. 2018. "Recent Progress in Daytime Radiative Cooling: Is It the Air Conditioner of the Future?" Buildings 8, no. 12: 168. https://doi.org/10.3390/buildings8120168

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