Granted Patent B2

US 12,315,684 · App. 17/354,956 · Granted May 27, 2025

Inventors: Yumi Miyamoto (Osaka, JP); Kenji Kawano (Osaka, JP)

Assignee: Panasonic Intellectual Property Management Co., Ltd.

H01G9/2009H01G9/2018H01G9/209H10K30/30H10K30/82H10K30/87H10K85/50H10K30/50

Abstract

Claims (20)

1. A solar cell comprising:

a first electrode;

a second electrode;

a photoelectric conversion layer disposed between the first electrode and the second electrode; and

an electron transport layer disposed between the first electrode and the photoelectric conversion layer,

wherein at least one electrode selected from the group consisting of the first electrode and the second electrode has a light-transmitting property,

the photoelectric conversion layer contains a perovskite compound comprising a monovalent cation, a Sn cation, and a halogen anion, and

the electron transport layer contains porous TiZnO 3 .

2. The solar cell according to claim 1 ,

wherein the porous TiZnO 3 has a porosity of greater than or equal to 20% and less than or equal to 70%.

3. The solar cell according to claim 2 ,

wherein the porous TiZnO 3 has a porosity of greater than or equal to 48% and less than or equal to 60%.

4. The solar cell according to claim 1 ,

wherein the monovalent cation includes at least one selected from the group consisting of a formamidinium cation and a methylammonium cation.

5. The solar cell according to claim 1 ,

wherein the halogen anion includes an iodide ion.

6. The solar cell according to claim 1 , further comprising:

a hole transport layer disposed between the second electrode and the photoelectric conversion layer.

7. The solar cell according to claim 1 ,

wherein the porous TiZnO 3 is in contact with the photoelectric conversion layer.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (14)