Backbone-engineered highly efficient polymer hole transporting materials, inverted perovskite solar cells made therefrom, and manufacturing methods therefor
US12245495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2023 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Jun 16, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
The invention develops a novel hole-transporting material (HTM), PTAA-P1 and PTAA-P2 via the backbone engineering strategy to modulate wettability and promote anchoring. The HTM properties can be effectively modified by varying the linkage sites of incorporated pyridine units. The 3,5-linked PTAA-P1 particularly demonstrates a more regulated molecular configuration for interacting with perovskites, forming a highly crystalline perovskite film with uniform back contact and reduced defect density. The invention also develops the perovskite solar cell including the novel HTM with remarkable PCE efficiency and stability for small-area and large-area solar cells. The invention also develops the method for fabricating the perovskite solar cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.