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US 2022/0013679 A1Published application
Monolithic metamorphic multi-junction solar cell
AssigneeAZUR SPACE Solar Power GmbH
InventorsMatthias MEUSEL, Daniel FUHRMANN
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Abstract
A monolithic metamorphic multi-junction solar cell comprising a first III-V subcell and a second III-V subcell and a third III-V subcell and a fourth Ge subcell, wherein the subcells are stacked on top of each other in the indicated order, and the first subcell forms the topmost subcell, and a metamorphic buffer is formed between the third subcell and the fourth subcell and all subcells each have an n-doped emitter layer and a p-doped base layer, and the emitter layer of the second subcell is greater than the base layer.
Claims17
A monolithic metamorphic multi-junction solar cell comprising:
- a first III-V subcell;
- a second III-V subcell;
- a third III-V subcell;
- a fourth Ge subcell, the first, second, third, and fourth subcells being stacked in the indicated order with the first subcell forming the topmost subcell;
- a metamorphic buffer formed between the third subcell and the fourth subcell;
- a semiconductor mirror formed between the second subcell and the third subcell,
- wherein the first, second, third and fourth subcells each have an n-doped emitter layer and a p-doped base layer,
- wherein a thickness of the emitter layer of the first, third and fourth subcell is less than a thickness of the associated base layer, and
- wherein, in the second subcell, the thickness of the emitter layer is greater than the thickness of the base layer.
6 more elements
Dependencies are inferred from the claim text.