Organic-inorganic perovskite solar cell with directional arrangement of intrinsic perovskite dipoles and preparation method thereof
US12349584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2023 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Aug 28, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
An organic-inorganic perovskite solar cell with directional arrangement of intrinsic perovskite dipoles is provided, and includes a conductive substrate, an electron transport layer, a perovskite film with directional arrangement of intrinsic dipoles, a hole transport layer and a metal counter electrode arranged from bottom to top; or the conductive substrate, the perovskite film with directional arrangement of intrinsic dipoles, the hole transport layer and the metal counter electrode arranged from bottom to top; a preparation method of the perovskite film includes: adding sulfonamide into perovskite precursor solution, and evenly mixing; spin coating on the electron transport layer or the conductive substrate and annealing. Volatile and high-polar molecule sulfonamide is used as an initiator for directional arrangement of intrinsic perovskite dipoles to induce reorientation of perovskite dipoles, thus achieving vertical directional polarization of the perovskite film, and effectively improve photoelectric conversion efficiency and stability of solar cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.