Dimethylammonium-containing perovskite devices
US11312738B2 · kind B2 · utility
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Key dates
| Filing date | Nov 8, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Jan 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present disclosure relates to a perovskite that includes ABX3, where A is an organic cation, B is a second cation, X is an anion, and the perovskite has a film density (ρ) of less than 4.37 g/cm3. In some embodiments of the present disclosure, the film density may be in the range, 4.1 g/cm3≤ρ≤4.37 g/cm3. In some embodiments of the present disclosure, the organic cation may include at least one of dimethylammonium (DMA), guanidinium (GA), and/or acetamidinium (Ac). In some embodiments of the present disclosure, A may further include cesium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.