Perovskite solar cells with self assembled monolayers
AssigneeBrown University
InventorsNitin P. Padture, Zhenghong Dai
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Abstract
A laminated structure is prepared by providing a self-assembled monolayer between an ETL and an MHP layer, wherein the self-assembled monolayer is formed by a monomer having the formula halide-alkyl linker-anchor moiety.
Claims31
A method of bonding a metal halide perovskite (“MHP”) layer to an electron transport (“ETL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the ETL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the ETL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer,
- with the proviso that the anchor moiety is not carboxylic acid.
A method of bonding a metal halide perovskite (“MHP”) layer to an electron transport (“ETL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the ETL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the ETL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer, wherein the anchor moiety is represented by —Si—(X)3, where X is a halogen, or —OR′ and R′ is C1 to C10 alkyl.
A method of bonding a metal halide perovskite (“MHP”) layer to an electron transport (“ETL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the ETL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the ETL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer, wherein the anchor moiety is —Si—(OR′) wherein R′ is methyl, ethyl, propyl or butyl.
A method of bonding a metal halide perovskite (“MHP”) layer to an electron transport (“ETL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the ETL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the ETL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer, wherein the halide is iodine, the alkyl is C3 alkyl and the anchor group is —Si(OCH3)3.
A method of bonding a metal halide perovskite (“MHP”) layer to an electron transport (“ETL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the ETL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the ETL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer, wherein the MHP is CS0.05(FA0.85MA0.15)0.95Pb(I0.85Br0.15)3 with 4 mol % excess PbI2.
A method of bonding a metal halide perovskite (“MHP”) layer to a hole-transport layer (“HTL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the HTL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the HTL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer,
- with the proviso that the anchor moiety is not a carboxylic acid.
A method of bonding a metal halide perovskite layer (“MHP”) layer to an electron transport layer (“ETL”) layer and a hole transport layer (“HTL”) layer comprising:
- providing a self-assembled monolayer between the MHP layer and the ETL layer,
- providing a self-assembled monolayer between the MHP layer and the HTL layer, wherein the self-assembled monolayer is formed from a monomer of formula I below
- halide-alkyl linker-anchor moiety,
- wherein the anchor moiety covalently bonds to the ETL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer, and
- wherein the anchor moiety covalently bonds to the HTL layer and the halide forms a coordination bond with a halide at the surface of the MHP layer,
- with the proviso that the anchor moiety is not a carboxylic acid.
Dependencies are inferred from the claim text.