Flexible Perovskite Solar Cells and Fabrication thereof
AssigneeCity University of Hong Kong
InventorsZonglong Zhu, Danpeng Gao, Bo Li
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Abstract
An ammonium acetate selected from the group of pentylammonium acetate, phenylethylammonium acetate, 2-([1,1′-biphenyl]-4-yl) ethan-1-amine acetate, butanammonium acetate, hexylammonium acetate, octylammonium acetate, phenylbutanammonium acetate, and any combination thereof, is used to modify a perovskite layer in a perovskite solar cell. A perovskite solar cell includes a perovskite layer and an interface modification layer that is in contact with the perovskite layer and includes at least one ammonium acetate provided herein. A method of preparing the inverted perovskite solar cell.
Claims20
Use of an ammonium acetate selected from the group consisting of pentylammonium acetate, phenylethylammonium acetate, 2-([1,1′-biphenyl]-4-yl) ethan-1-amine acetate, butanammonium acetate, hexylammonium acetate, octylammonium acetate, phenylbutanammonium acetate, and any combination thereof, to modify a perovskite layer in a perovskite solar cell.
A perovskite solar cell comprising
- a perovskite layer;
- and
- an interface modification layer that is in contact with the perovskite layer and comprises at least one ammonium acetate selected from the group consisting of pentylammonium acetate, phenylethylammonium acetate, 2-([1,1′-biphenyl]-4-yl) ethan-1-amine acetate, butanammonium acetate, hexylammonium acetate, octylammonium acetate, phenylbutanammonium acetate, and any combination thereof.
A method of preparing an inverted perovskite solar cell comprising the steps of:
- providing a substrate layer;
- providing a transparent electrode on the flexible substrate layer;
- coating a hole transport layer onto the substrate layer;
- coating a perovskite layer;
- coating an electron transport layer onto the perovskite layer;
- coating a metal electrode on the electron transport layer;
- wherein, an interface modification layer is coated onto the hole transport layer prior to coating the perovskite layer, and/or coating onto the perovskite layer followed by coating the perovskite layer;
- and
- wherein the interface modification layer comprises at least one ammonium acetate selected from the group consisting of pentylammonium acetate, phenylethylammonium acetate, 2-([1,1′-biphenyl]-4-yl) ethan-1-amine acetate, butanammonium acetate, hexylammonium acetate, octylammonium acetate, phenylbutanammonium acetate, and any combination thereof.
Dependencies are inferred from the claim text.