Method of Making Coated Substrates
AssigneeBrown University
InventorsNitin P. Padture, Yuanyuan Zhou
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Abstract
Methods' and compositions for making coated substrates using a co-solvent method are disclosed. Embodiments of the present disclosure relate in general to methods and compositions for making thin films of organometallic halides. According to one aspect, organometallic halides are deposited from solution on the surface of a substrate at temperatures between about 10 C and 50 C. According to one aspect, organometallic halides are deposited from solution on the surface of a substrate at room temperature.
Claims60
A method of making a coated substrate comprising
- contacting a surface of a substrate having a coating of a solution of a first solvent and an organometallic halide thereon with a second solvent,
- wherein the organometallic halide is insoluble in the second solvent and the first solvent is miscible with the second solvent,
- wherein the first solvent is extracted from the coating of the solution into the second solvent, and
- wherein the organometallic halide precipitates from the solution onto the surface of the substrate forming an organometallic halide coating on the substrate.
A solar cell including a coated substrate wherein the coating is a room temperature co-solvent precipitate of an organometallic halide.
A coated substrate produced by the method comprising
- contacting a surface of a substrate having a coating of a solution of a first solvent and an organometallic halide thereon with a second solvent,
- wherein the organometallic halide is insoluble in the second solvent and the first solvent is miscible with the second solvent,
- wherein the first solvent is extracted from the coating of the solution into the second solvent, and
- wherein the organometallic halide precipitates from the solution onto the surface of the substrate forming an organometallic halide coating on the substrate.
Dependencies are inferred from the claim text.