Multijunction solar cell having patterned emitter and method of making the solar cell
US10593818B2 · kind B2 · utility
1Cited by
1References
28Claims
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Key dates
| Filing date | Dec 9, 2016 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
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.