Multijunction solar cell having patterned emitter and method of making the solar cell
US11335822B2 · kind B2 · utility
0Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2020 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Mar 12, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
A multijunction solar cell includes a base substrate comprising a Group IV semiconductor and a dopant of a first carrier type. A patterned emitter is formed at a first surface of the base substrate. The patterned emitter comprises a plurality of well regions doped with a dopant of a second carrier type in the Group IV semiconductor. The base substrate including the patterned emitter form a first solar subcell. The multijunction solar cell further comprises an upper structure comprising one or more additional solar subcells over the first solar subcell. Methods of making a multijunction solar cell are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.