Solar cells
US12062728B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 7, 2023 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Nov 7, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
A solar cell is provided. The solar cell includes: an N-type silicon substrate having a first surface and a second surface, a tunnel passivation structure and a first passivation and anti-reflection film formed on the first surface, a boron-doped emitter structure layer including a first emitter layer and a second emitter region formed on the second surface, a second passivation and anti-reflection film formed on the emitter structure layer, a first electrode configured to be in electrical contact with the second emitter region, and a second electrode configured to be in electrical contact with the tunnel passivation structure. The solar cell of the present application has a selective emitter structure. The metal contact region has a large junction depth to meet the metallization requirements. The region outside the metal contact region has a small junction depth to improve the optical response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.