Method for inkjet printing an organic-inorganic perovskite
US11177440B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 2, 2017 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Dec 24, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
The present invention provides a method for depositing an organic-inorganic perovskite, the method comprising the step of depositing a perovskite precursor solution comprising one or more organic cation, wherein said precursor solution preferably deposited by inkjet printing. The method is particularly useful in the manufacture of perovskite solar cells. For depositing the perovskite, a perovskite precursor solution or ink is preferably used, which comprises an organic cation carrying an anchoring group, such as 5-ammonium valeric acid. Surprisingly, the presence of the latter compound renders the precursor solutions stable and suitable for inkjet printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.