Film preparation method, solar cell, photovoltaic device, and photovoltaic system
US12396288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Sep 19, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/311
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present application provides a film preparation method, a solar cell, a photovoltaic device, and a photovoltaic system. The film preparation method includes forming a first passivation layer on a first surface of a substrate by using a first preparation technique; and forming a second passivation layer on a surface of the first passivation layer away from the substrate by using a second preparation technique, a material of the second passivation layer is the same as that of the first passivation layer; wherein a passivation layer forming speed of the first preparation technique is lower than that of the second preparation technique, and a passivation effect of the first passivation layer is better than that of the second passivation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.