	US 11,856,807 B2
	Method for producing laminate and method for producing perovskite solar cell
Mikito Suto, Tokyo (JP); Hiroyuki Masuoka, Tokyo (JP); and Akira Matsuzaki, Tokyo (JP)
Assigned to JFE STEEL CORPORATION, Tokyo (JP)
Appl. No. 17/297,160
Filed by JFE Steel Corporation, Tokyo (JP)
PCT Filed Dec. 9, 2019, PCT No. PCT/JP2019/047996 § 371(c)(1), (2) Date May 26, 2021, PCT Pub. No. WO2020/121991, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 2018-232670 (JP), filed on Dec. 12, 2018.
Prior Publication US 2022/0029117 A1, Jan. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 25/00 (2006.01); H01L 31/00 (2006.01); H02S 10/00 (2014.01); H10K 30/88 (2023.01); H10K 30/10 (2023.01); H10K 30/82 (2023.01)

CPC H10K 30/88 (2023.02) [H10K 30/10 (2023.02); H10K 30/82 (2023.02)]

17 Claims

1. A laminate producing method for producing a laminate serving as a light-transmissive electrode layer and an electron transport layer of a perovskite solar cell including the light-transmissive electrode layer, the electron transport layer, a perovskite crystal layer, a hole transport layer and a collector electrode layer in this order, the method comprising:

subjecting a member serving as the light-transmissive electrode layer to cathode polarization in an acidic treatment solution containing a Ti component to thereby form, directly on a surface of the member serving as the light-transmissive electrode layer, a titanium oxide layer serving as the electron transport layer,

wherein polystyrene sphere particles are not adsorbed on the member serving as the light-transmissive electrode layer before subjecting the member serving as the light-transmissive electrode layer to cathode polarization.