Solar cell
US9780241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
A solar cell includes a semiconductor substrate of first conductivity type, including first and second principal surfaces; a region of the first conductivity type, including a semiconductor layer structure of the first conductivity type provided on the first principal surface; and a region of an second conductivity type, including a semiconductor layer structure of the second conductivity type provided on the first principal surface. The semiconductor layer structure of the first conductivity type is formed extending into the region of the second conductivity type. Thereby the solar cell is provided with a stack region where the semiconductor layer structure of the second conductivity type is formed on the semiconductor layer structure of the first conductivity type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.