Radiative sky cooling: fundamental physics, materials, structures, and applications

Nanophotonics

article

Xingshu Sun¹  Yubo Sun¹  Zhiguang Zhou¹  Muhammad Ashraful Alam¹  Peter Bermel¹ 

[1] School of Electrical and Computer Engineering, Purdue University;Birck Nanotechnology Center, Purdue University

关键词: radiative cooling;    nanophotonics;    selective thermal emission;    photovoltaics;    infrared detectors;    thermophotovoltaics;    emissive energy harvesters;   

DOI  :  10.1515/nanoph-2017-0020

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Radiative sky cooling reduces the temperature of a system by promoting heat exchange with the sky; its key advantage is that no input energy is required. We will review the origins of radiative sky cooling from ancient times to the modern day, and illustrate how the fundamental physics of radiative cooling calls for a combination of properties that may not occur in bulk materials. A detailed comparison with recent modeling and experiments on nanophotonic structures will then illustrate the advantages of this recently emerging approach. Potential applications of these radiative cooling materials to a variety of temperature-sensitive optoelectronic devices, such as photovoltaics, thermophotovoltaics, rectennas, and infrared detectors, will then be discussed. This review will conclude by forecasting the prospects for the field as a whole in both terrestrial and space-based systems.

【 授权许可】

CC BY