Patent ID: 11895903
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A method of forming a perovskite thin film, the method comprising:
preparing a substrate;
spraying a first solution of a first perovskite compound precursor through an inner nozzle of a dual nozzle including the inner nozzle and an outer nozzle;
spraying a second solution of a second perovskite compound precursor through the outer nozzle;
forming a perovskite compound solution by reacting the first solution of the first perovskite compound precursor and the second solution of the second perovskite compound precursor;
forming a membrane on the substrate from the perovskite compound solution; and
evaporating a solvent of the perovskite compound solution from the membrane on the substrate.