Reduced band gap absorber for solar cells
US10361332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/548
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Methods and apparatuses for a dual heterojunction multijunction solar cell are disclosed. A method in accordance with the present invention comprises growing a base material for a solar cell, growing at least one dual heterojunction on the base material, and growing an emitter on the at least one dual heterojunction. An apparatus in accordance with the present invention comprises a substrate, and a first subcell, coupled to the substrate, wherein the first subcell comprises a base region, coupled to the substrate, an emitter region, and at least one dual heterojunction, coupled between the base region and the emitter region, wherein the at least one dual heterojunction has a lower bandgap than the emitter region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.