期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 236, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.solmat.2021.111492
关键词
Daytime passive radiative cooling; Disordered media; Nanofiller; Pore structures; Bionic structures
Daytime passive radiative cooling (DPRC) is a cooling method without extra energy consumption, which has gained increasing attention in recent years. By combining disordered media with polymeric photonics, the large-scale preparation of DPRC materials can be realized.
Daytime passive radiative cooling (DPRC), a cooling method without extra energy consumption, has attracted more and more attentions in recent years. The strong reflection ability in the sunlight waveband (0.3-2.5 mu m) and the intensive infrared radiative characteristic within the atmospheric window (8-13 mu m), which called spectral selectivity, are the key point to realize DPRC. Spectral selectivity achieved by photonic crystals are difficult to promote on large scale because of complicated manufacturing process. With the rapid development of nanotechnology, materials with disordered media are playing an increasingly important role in functional devices. Combining disordered media with polymeric photonics will become an effective way to realize the largescale preparation of DPRC materials. This review summarizes two kinds of disordered DPRC structures, paint and film with fillers, as well as porous polymers, including the influence of types, morphology, and particle size of fillers, as well as pore morphology, pore size distribution and preparation methods of porous polymers on the spectral performance and cooling effect of radiators. Also, we briefly introduce the biologically inspired microstructures for radiative cooling, in order to provide guidance for the practical application of DPRC materials.
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