Photoelectric conversion element, photoelectric conversion module, electronic device, and power supply module

Patent metadata

Field	Value
Publication number	US-12062503-B2
Application number	US-202017770666-A
Country	US
Kind code	B2
Filing date	Nov 30, 2020
Priority date	Nov 28, 2019
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A photoelectric conversion element including: a first substrate; a first electrode; a photoelectric conversion layer; a second electrode; and a second substrate, wherein the photoelectric conversion element includes a sealing part sealing at least the photoelectric conversion layer, the sealing part is disposed so as to surround periphery of the photoelectric conversion layer, and a width of the sealing part disposed at each side has a minimum width A and a maximum width B in a width direction, and a ratio (B/A) of the maximum width B to the minimum width A is 1.02 or more but 5.0 or less.

First claim

The invention claimed is:

1. A photoelectric conversion element comprising:
a first substrate;
a first electrode;
a photoelectric conversion layer including an electron-transporting layer and a hole-transporting layer;
a second electrode; and
a second substrate,
wherein the photoelectric conversion element includes a sealing part sealing at least the photoelectric conversion layer,
the sealing part is disposed so as to surround periphery of the photoelectric conversion layer, and
a width of the sealing part disposed at each side has a minimum width A and a maximum width B in a width direction, and a ratio (B/A) of the maximum width B to the minimum width A is 1.02 or more but 5.0 or less,
wherein the photoelectric conversion element further comprises a deletion part surrounding the periphery of the photoelectric conversion layer,
the sealing part is disposed between the deletion part and the second substrate,
the sealing part is in direct contact with the deletion part, and
the deletion part includes a deletion layer containing same materials as the electron-transporting layer.

2. The photoelectric conversion element according to claim 1 ,
wherein the deletion layer has concave-convex parts.

3. The photoelectric conversion element according to claim 2 ,
wherein a maximum thickness of the deletion layer is 10 nm or more but 300 nm or less.

4. The photoelectric conversion element according to claim 2 ,
wherein a minimum thickness of the deletion layer is 5 nm.

5. The photoelectric conversion element according to claim 1 ,
wherein the ratio (B/A) of the maximum width B to the minimum width A is 1.09 or more but 3.0 or less.

6. The photoelectric conversion element according to claim 1 ,
wherein a distance C between the sealing part and the second electrode is 30 micrometers or more.

7. The photoelectric conversion element according to claim 1 ,
wherein the sealing part includes an epoxy resin.

8. The photoelectric conversion element according to claim 1 ,
wherein the sealing part is formed of a sealing resin and a spacer.

9. A photoelectric conversion module comprising
a plurality of photoelectric conversion elements, each of the plurality of photoelectric conversion elements being the photoelectric conversion element according to claim 1 .

10. The photoelectric conversion module according to claim 9 ,
wherein the plurality of photoelectric conversion elements are coupled in series or in parallel.

11. An electronic device comprising:
the photoelectric conversion element according to claim 1 ; and
a device configured to be driven by electric power generated through photoelectric conversion of the photoelectric conversion element.

12. A power supply module comprising:
the photoelectric conversion element according to claim 1 ; and
a power supply IC.

13. An electronic device comprising:
the power supply module according to claim 12 ; and
an electricity storage device.

14. An electronic device comprising:
the photoelectric conversion module according to claim 9 ; and
a device configured to be driven by electric power generated through photoelectric conversion of the photoelectric conversion module.

15. A power supply module comprising:
the photoelectric conversion module according to claim 9 ; and
a power supply IC.

16. An electronic device comprising:
the power supply module according to claim 15 ; and
an electricity storage device.

Assignees

• Kanei Naomichi
• Horiuchi Tamotsu
• Tanaka Yuuji
• Tamoto Nozomu
• Honda Tetsuya
• Ricoh Co Ltd

Inventors

• Kanei Naomichi
• Horiuchi Tamotsu
• Tanaka Yuuji
• Tamoto Nozomu
• Honda Tetsuya

Classifications

• H01G9/2081

  Serial interconnection of cells · CPC title

• H01G9/2068

  Panels or arrays of photoelectrochemical cells, e.g. photovoltaic modules based on photoelectrochemical cells · CPC title

• H01G9/2031

  comprising titanium oxide, e.g. TiO2 (H01G9/2036 takes precedence) · CPC title

• Y02E10/542

  Dye sensitized solar cells · CPC title

• Y02E10/549

  Organic PV cells · CPC title