Method for preparing perovskite solar cell by in-situ injection of self-assembled molecule
US12310223B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 25, 2024 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Dec 25, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
A method for preparing a perovskite solar cell by in-situ injection of the self-assembled molecules includes preparing the substrate; preparing the perovskite precursor solution; preparing the anti-solvent containing self-assembled conjugated small molecule materials; dripping the perovskite precursor solution and the anti-solvent containing the self-assembled conjugated small molecule materials successively on the substrate to prepare the perovskite layer; annealing the perovskite layer; preparing the precursor solution of the hole transport layer; spin-coating the precursor solution of the hole transport layer on the surface of the perovskite layer to prepare the hole transport layer; preparing the metal electrode for the hole transport layer. The invention effectively passivates the defects on the surface and grain boundary of perovskite by in-situ anti-solvent injection of self-assembled conjugated molecules, inhibits non-radiative recombination, and assists the growth of perovskite into larger and more uniform grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.