Title:
LIGHT ABSORBING LAYER AND MANUFACTURING METHOD THEREFOR, PHOTOELECTRIC CONVERSION ELEMENT, AND INTERMEDIATE BAND-TYPE SOLAR CELL
Document Type and Number:
WIPO Patent Application WO/2021/001906
Kind Code:
A1
Abstract:
The present invention provides: a light-absorbing layer for forming a photoelectric conversion element and an intermediate band-type solar cell which have excellent two-step light-absorption quantum yield; and a photoelectric conversion element and an intermediate band-type solar cell having the light-absorbing layer.
In addition, the present invention provides a method for manufacturing a light-absorbing layer that includes an intermediate band and that has few voids.
This light-absorbing layer: is configured so that quantum dots are scattered in the matrix of a bulk semiconductor having band-gap energy of 2.0 to 3.0eV; includes an intermediate band; and has a void rate of no more than 10%.
Inventors:
OKONOGI AKINORI (JP)
HOSOKAWA HIROJI (JP)
SAWADA TAKUYA (JP)
HOSOKAWA HIROJI (JP)
SAWADA TAKUYA (JP)
Application Number:
PCT/JP2019/026170
Publication Date:
January 07, 2021
Filing Date:
July 01, 2019
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
H01L51/44
Domestic Patent References:
| WO2018163327A1 | 2018-09-13 | |||
| WO2016109902A2 | 2016-07-14 |
Foreign References:
| JP2019012819A | 2019-01-24 | |||
| JP2018523309A | 2018-08-16 | |||
| JP2017504960A | 2017-02-09 | |||
| JP2019055916A | 2019-04-11 |
Other References:
HOSOKAWA, H. ET AL.: "Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites", NATURE COMMUNICATIONS, vol. 10, no. 43, 10 January 2019 (2019-01-10), pages 1 - 8, XP055735372
HAN, J. ET AL.: "Hybrid PbS Quantum-Dot-in- Perovskite for High-Efficiency Perovskite Solar Cell", SMALL, vol. 14, no. 31, 4 July 2018 (2018-07-04), pages 1801016-1 - 1801016-8, XP055783041
HAN, J. ET AL.: "Hybrid PbS Quantum-Dot-in- Perovskite for High-Efficiency Perovskite Solar Cell", SMALL, vol. 14, no. 31, 4 July 2018 (2018-07-04), pages 1801016-1 - 1801016-8, XP055783041
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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