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/2021/002327
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/JP2020/025538
Publication Date:
January 07, 2021
Filing Date:
June 29, 2020
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 | |||
| JP2014135445A | 2014-07-24 | |||
| JPS6343406B2 | 1988-08-30 |
Other References:
HOSOKAWA, H. ET AL.: "Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites", NATURE COMMUNICATIONS, 10 January 2019 (2019-01-10), XP055735372
HAN, J. ET AL.: "Hybrid PbS quantum-dot-in- perovskite for high-efficiency perovskite solar cell", SMALL, vol. 14, 2018, pages 1801016 - 1 - 1801016-8, XP055783041
ACS NANO, vol. 8, 2014, pages 6363 - 6371
CHEMICAL REVIEW, vol. 110, 2010, pages 6595
See also references of EP 3993076A4
HAN, J. ET AL.: "Hybrid PbS quantum-dot-in- perovskite for high-efficiency perovskite solar cell", SMALL, vol. 14, 2018, pages 1801016 - 1 - 1801016-8, XP055783041
ACS NANO, vol. 8, 2014, pages 6363 - 6371
CHEMICAL REVIEW, vol. 110, 2010, pages 6595
See also references of EP 3993076A4
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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