Ultra-high efficiency multi-junction solar cells using polychromatic diffractive concentrators
US8669461B2 · kind B2 · utility
2Cited by
8References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2008 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | May 15, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/52
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A photovoltaic cell is provided. The photovoltaic cell includes a concentrator optic structure separating the solar spectrum of light into a plurality of spectral bands. The concentrator optic structure focuses these spectral bands into a plurality of concentric tightly focused ring-shaped spots and a central round spot. A multitude of circular sub-cells are each approximately positioned at a ring-shaped spot associated with a respective spectral band produced by the concentrator optic structure. Each of the sub-cells stores the energy produced at the respective spectral band
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.