Stabilized perovskite structure, its preparation and use in solar cell
AssigneeCity University of Hong Kong
InventorsAlex Kwan Yue Jen, Xiaofeng Huang
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Abstract
A stabilized perovskite-containing structure for use as a photoactive layer in a solar cell includes a halide perovskite structure and a polyoxometalate (POM) cluster arranged to stabilize the halide perovskite structure. The method for preparing the stabilized perovskite-containing structure and the use of the stabilized perovskite-containing structure are also addressed.
Claims37
A perovskite-containing structure for use as a photoactive layer in a solar cell comprising a halide perovskite structure and a polyoxometalate (POM) cluster arranged to stabilize the halide perovskite structure;
- wherein the POM cluster includes an ammonium compound having a formula selected from the group consisting of:
- wherein:
- R1 is selected from the group consisting of a hydrogen, an ammonium cation and a halogen;
- L is an aliphatic alkyl or an aromatic linker structure having 1 to 26 carbons;
- R2 is selected from the group consisting of amine, substituted or unsubstituted methylene and nitrenium cation;
- and
- the ring in Formula (II) represents an aliphatic 6-membraned to 8-membraned ring, including the R2 and NH2+.
A solar cell comprising:
- a hole transport layer;
- an electron transport layer;
- and
- a perovskite-containing structure disposed between the hole transport layer and the electron transport layer;
- wherein the perovskite-containing structure includes a halide perovskite structure;
- and a polyoxometalate (POM) cluster which includes an ammonium compound having a formula selected from the group consisting of:
- wherein:
- R1 is selected from the group consisting of a hydrogen, an ammonium cation and a halogen;
- L is an aliphatic alkyl or an aromatic linker structure having 1 to 26 carbons;
- R2 is selected from the group consisting of amine, substituted or unsubstituted methylene and nitrenium cation;
- the ring in Formula (II) represents an aliphatic 6-membraned to 8-membraned ring, including the R2 and NH2+.
Dependencies are inferred from the claim text.