US 11,737,291 B2
Solar cell
Tomoyasu Yokoyama, Osaka (JP); Yu Nishitani, Osaka (JP); Shohei Kusumoto, Osaka (JP); and Yumi Miyamoto, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Sep. 10, 2021, as Appl. No. 17/471,708.
Application 17/471,708 is a continuation of application No. PCT/JP2019/040826, filed on Oct. 17, 2019.
Claims priority of application No. 2019-078084 (JP), filed on Apr. 16, 2019.
Prior Publication US 2021/0408413 A1, Dec. 30, 2021
Int. Cl. H10K 30/10 (2023.01); H10K 30/81 (2023.01); H10K 102/00 (2023.01)
CPC H10K 30/10 (2023.02) [H10K 30/81 (2023.02); H10K 2102/00 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A solar cell, comprising:
a first electrode;
a second electrode;
a photoelectric conversion layer located between the first electrode and the second electrode; and
a first electron transport layer located between the first electrode and the photoelectric conversion layer,
wherein at least one selected from the group consisting of the first electrode and the second electrode is translucent,
the photoelectric conversion layer contains a perovskite compound composed of a monovalent cation, a Sn cation, and a halogen anion, and
the first electron transport layer contains a niobium oxide halide, wherein a halogen contained in the niobium oxide halide is F and the molar composition ratio of F/Nb is from 0.012 to 0.796.