Inverted metamorphic multijunction solar cell with DBR layer adjacent to the top subcell
US9018521B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2010 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/544
Abstract
A multijunction solar cell comprising an upper first solar subcell having a first band gap; a middle second solar subcell adjacent to the first solar subcell and having a second band gap smaller than the first band gap; a graded interlayer adjacent to the second solar subcell; the graded interlayer having a third band gap greater than the second band gap; a third solar subcell adjacent to the interlayer, the third subcell having a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell; and a distributed Bragg reflector (DBR) layer adjacent to the upper first subcell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.