Title:
PHOTOELECTRIC CONVERSION ELEMENT AND METHOD FOR PRODUCING PHOTOELECTRIC CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2020/188751
Kind Code:
A1
Abstract:
This photoelectric conversion element is provided with: a substrate; a first photoelectric conversion unit provided with a first substrate electrode, a first active layer, and a first counter electrode; a second photoelectric conversion unit provided with a second substrate electrode, a second active layer, and a second counter electrode; and a connecting section provided with a groove whereby the surface of the second substrate electrode is exposed from the second active layer, and a conductive section comprising a part of the first counter electrode embedded in the groove, in which the first counter electrode and the second substrate electrode are electrically connected via the conductive section. The second active layer is represented by the compositional formula AαBXχ. The second active layer comprises a first compound layer containing a first compound satisfying 0.95 ≤ α and 2.95 ≤ χ and a second compound layer that is arranged between the first compound layer and the second substrate electrode and that contains a second compound satisfying α < 0.95 and χ < 2.95.
Inventors:
OOOKA HARUHI (JP)
NAKAO HIDEYUKI (JP)
FUJINAGA KENJI (JP)
NAKAO HIDEYUKI (JP)
FUJINAGA KENJI (JP)
Application Number:
PCT/JP2019/011479
Publication Date:
September 24, 2020
Filing Date:
March 19, 2019
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H01L51/44
Domestic Patent References:
| WO2018043644A1 | 2018-03-08 | |||
| WO2018123402A1 | 2018-07-05 |
Foreign References:
| JP2018056213A | 2018-04-05 | |||
| US20180211791A1 | 2018-07-26 | |||
| JPS5715795B2 | 1982-04-01 | |||
| JPS6030176B2 | 1985-07-15 |
Other References:
ZHENG, ENQIANG ET AL.: "PbI2-Based Dipping- Controlled Material Conversion for Compact Layer Free Perovskite Solar Cells", ACS APPLIED MATERIALS & INTERFACES, vol. 7, 2015, pages 18156 - 18162, XP055741003
CHEN, HAINING: "Two-Step Sequential Deposition of Organometal Halide Perovskite for Photovoltaic Application", ADVANCED FUNCTIONAL MATERIALS, vol. 27, 2017, pages 1605654, XP055741007
CHEN, HAINING: "Two-Step Sequential Deposition of Organometal Halide Perovskite for Photovoltaic Application", ADVANCED FUNCTIONAL MATERIALS, vol. 27, 2017, pages 1605654, XP055741007
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, p.c. (JP)
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