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US 12,672,420 B2Granted
Composite materials for transport layers in perovskite solar cells
AssigneeSwift Solar Inc.
InventorsTomas Leijtens, Giles Eperon, Rohit Prasanna, Annikki Santala
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Abstract
Solar cell stack-ups are described in which fullerene based transport layers are blended with a metal halide such as LiF, CsF or MgF2. In particular, perovskite solar cell stack-ups are described in which an electron transport layer includes a metal halide and fullerene blend.
Claims21
A solar cell comprising:
- a bottom electrode;
- a bottom transport layer over the bottom electrode;
- a perovskite absorber layer over the bottom transport layer;
- a top transport layer over the perovskite absorber layer, wherein the top transport layer includes a metal halide and fullerene blend, the metal halide is blended throughout an entire thickness of the top transport layer, and the metal halide comprises 20%-60% by volume of the top transport layer;
- and
- a top electrode layer over the top transport layer.
3 more elements
Dependencies are inferred from the claim text.