DOI: 10.1126/science.aai7899 ISSN:

Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling

Yao Zhai, Yaoguang Ma, Sabrina N. David, Dongliang Zhao, Runnan Lou, Gang Tan, Ronggui Yang, Xiaobo Yin
  • Multidisciplinary

The lazy way to keep cool in the sun

Passive radiative cooling requires a material that radiates heat away while allowing solar radiation to pass through. Zhai et al. solve this riddle by constructing a metamaterial composed of a polymer layer embedded with microspheres, backed with a thin layer of silver (see the Perspective by Zhang). The result is an easy-to-manufacture material near the theoretical limit for daytime radiative cooling. The translucent and flexible film can be made in large quantities for a variety of energy technology applications.

Science , this issue p. 1062 ; see also p. 1023

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