Efficient interconnecting layer for tandem solar cells
US10910439B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Sep 29, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
A tandem solar cell comprises a back subcell; a front subcell; and an interconnecting layer of Cr/MoO3 between the back subcell and the front subcell and connecting the two subcells in series. The front subcell may comprise a carbazole-thienyl-benzothiadiazole based polymer and the back subcell may comprise an isoindigo-based polymer. A method for making a tandem solar cell comprises a) providing a substrate layer; b) applying a layer of PCDTBT:PC71BM to the substrate layer; c) applying a bilayer of chromium and MoO3 to the PCDTBT:PC71BM layer; d) applying a layer of P(T3-iI)-2:PC71BM on the bilayer of chromium and MoO3; and e) applying a Ca and Al electrode layer on the top.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.