Open Access
7 October 2021 Colorful surfaces for radiative cooling
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Abstract

Daytime radiative cooling has attracted extensive research interest due to its potential impact for energy sustainability. To achieve subambient radiative cooling during the daytime, a white surface that strongly scatters incident solar light is normally desired. However, in many practical applications (e.g., roofing materials and car coatings), colored surfaces are more popular. Because of this, there is a strong desire to develop colorful surfaces for radiative cooling. We summarize the general design criteria of radiative cooling materials with different colors and discuss the limitations in cooling performance. Major efforts on this specific topic are reviewed with some suggested topics for future investigation.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Lyu Zhou, Jacob Rada, Haomin Song, Boon Ooi, Zongfu Yu, and Qiaoqiang Gan "Colorful surfaces for radiative cooling," Journal of Photonics for Energy 11(4), 042107 (7 October 2021). https://doi.org/10.1117/1.JPE.11.042107
Received: 4 July 2021; Accepted: 22 September 2021; Published: 7 October 2021
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CITATIONS
Cited by 21 scholarly publications.
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KEYWORDS
Absorption

Solar energy

Near infrared

Photonics

Solar radiation

Infrared radiation

Silica

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