Non-fullerene electron acceptors for organic photovoltaic devices
US9809594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Sep 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Non-fullerene electron acceptors for highly efficient organic photovoltaic devices are described. The non-fullerene electron acceptors have an extended, rigid, π-conjugated electron-deficient framework that can facilitate exciton and charge derealization. The non-fullerene electron acceptors can physically mix with a donor polymer and facilitate improved electron transport. The non-fullerene electron acceptors can be incorporated into organic electronic devices, such as photovoltaic cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.