| abstract |
The present invention minimizes the absorption of light in the solar spectrum, absorbs and radiates long-wavelength infrared rays corresponding to the wavelength range of the window of the atmosphere, and radiates heat under the device to the outside, thereby cooling the surface of a material or the temperature under the material. Regarding the idea, radiation consisting of a multilayer structure capable of enhancing solar reflection through the difference in refractive index of the formed material while performing selective radiation for the wavelength range of the atmospheric window using a radiation cooling element having a multilayer structure of polymers and inorganic materials. It is a technology for providing a cooling element. |