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US 2026/0090180 A1Published application
Electron carrier for electron transport layer of perovskite solar cell, electron transport layer coating agent comprising same, electron transport layer, and perovskite solar cell
AssigneeHanwha Solutions Corporation
InventorEun Joo YEOM
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Abstract
The present invention relates to a coating agent for forming an electron transport layer (or electron transfer layer), wherein surface-modified metal oxide nanoparticles prepared in the form of a dispersion solution are provided as the coating agent, and relates to an inverted perovskite in which an electron transport layer is formed using the same.
Claims11
An electron carrier for an electron transport layer of a perovskite solar cell, comprising metal oxide nanoparticles that are surface-modified with a phosphonium salt represented by Chemical Formula 1 below:
- wherein in Chemical Formula 1, each of R1 to R4 is independently a C1 to C10 straight-chain alkyl group, a C3 to C10 branched alkyl group, a phenyl group or a benzyl group, and X is a halogen atom or —OH.
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Dependencies are inferred from the claim text.