Optically-switchable thermally-insulating VO2-aerogel hybrid film for window retrofits
US11359434B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Sep 22, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2417
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A retrofitted window is disclosed which includes a substantially transparent aerogel film laminated on a glass windowpane, the aerogel film being embedded with randomly dispersed nanoparticles of vanadium dioxide (VO2) core and silicon dioxide (SiO2) shell, wherein the vanadium dioxide (VO2) core transitions between an insulator phase and a metal phase at a predetermined phase-transition temperature, and a volume fraction of the nanoparticles in the aerogel film is approximately between 0.001% and 0.05%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.