Technical Principle of Radiative Cooling
The radiative cooling film integrates both reflective and thermal radiation functions. The film reflects most of the solar radiation outward. Meanwhile, the ceramic microbeads embedded within the film absorb heat and generate vibrations, converting the absorbed heat into electromagnetic waves in the 8-13μm range — this process dissipates the heat accumulated inside the film. Through the synergy of these two functions, the film achieves effective cooling of the target equipment.
Outer space, with a temperature of -270.42 °C, provides vast potential for the achievement of “Earth's cooling” .
All-weather thermochromic windows for synchronous solar and thermal radiation regulation. Science Advances,8 (17),eabn7359.
https://www.science.org/doi/10.1126/sciadv.abn7359
