Solar photovoltaic (PV) panels or devices with infrared (IR) reflecting films for enhanced efficiency
US11908965B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2023 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Mar 16, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/52
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A solar or photovoltaic (PV) system that includes a PV device with an upper surface configured for receiving sunlight and converting the received sunlight into electrical energy. An infrared (IR) reflecting film is placed over the upper surface to increase the efficiency of the PV device by retaining its operating temperature in more desired ranges. The IR reflecting film includes a substrate with a top surface and a bottom surface, and the bottom surface is mated with the upper surface of the PV device. The IR reflecting film also includes a plurality of structures, each with a recessed surface, formed on the top surface of the substrate. The IR reflecting film includes a reflective mask on the top surface of the substrate that includes reflective elements each disposed in the structures' recessed surfaces. In use, the IR reflecting film reflects sunlight having a wavelength greater than about 950 nanometers (nm).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.