Radiative cooling device having multilayer structure
US11639832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2020 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Jul 15, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B10/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure relates to a technical idea of reducing the surface temperature of a material or temperature under a material by emitting heat under a device to the outside by absorbing and emitting long-wavelength infrared light corresponding to the wavelength range of the atmospheric window while minimizing absorption of light of the solar spectrum. More particularly, the present disclosure relates to a technology for providing a radiative cooling device having a multilayer structure that is capable of increasing sunlight reflection through differences in the refractive indexes of the device-forming materials while performing selective emission over the wavelength range of the atmospheric window using a radiative cooling device having a multilayer structure composed of polymers and inorganic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.