Title:
SOLAR CELL, MULTI-JUNCTION SOLAR CELL, SOLAR CELL MODULE, AND SOLAR PHOTOVOLTAIC POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/002062
Kind Code:
A1
Abstract:
Embodiments provide a solar cell, a multi-junction solar cell, a solar cell module, and a solar photovoltaic power generation system, which exhibit improved characteristics. A solar cell 100 of embodiments includes a transparent first electrode 1, a photoelectric conversion layer 2 mainly containing cuprous oxide on the first electrode 1, an n-type layer 3 on the photoelectric conversion layer 2, and a transparent second electrode 4 on the n-type layer 3. A mixed region 2a or/and a mixed layer 2b are present on the n-type layer 3 side of the photoelectric conversion layer 2, and the mixed region 2a and the mixed layer 2b contain elements belonging to a first group, a second group, and a third group. The first group is one or more elements selected from the group consisting of Zn and Sn, the second group is one or more elements selected from the group consisting of Y, Sc, V, Cr, Mn, Fe, Ni, Zr, B, Al, Ga, Nb, Mo, Ti, F, Cl, Br, and I, and the third group is one or more elements selected from the group consisting of Ge and Si.
Inventors:
YAMAMOTO KAZUSHIGE (JP)
SHIBASAKI SOICHIRO (JP)
YAMAZAKI MUTSUKI (JP)
NAKAGAWA NAOYUKI (JP)
HONISHI YUYA (JP)
YOSHIO SARA (JP)
HIRAOKA YOSHIKO (JP)
SHIBASAKI SOICHIRO (JP)
YAMAZAKI MUTSUKI (JP)
NAKAGAWA NAOYUKI (JP)
HONISHI YUYA (JP)
YOSHIO SARA (JP)
HIRAOKA YOSHIKO (JP)
Application Number:
PCT/JP2020/011290
Publication Date:
January 07, 2021
Filing Date:
March 13, 2020
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H01L31/032; H01L31/0336; H01L31/0725
Foreign References:
| JP2017098479A | 2017-06-01 | |||
| JP2018046196A | 2018-03-22 |
Other References:
SHIBASAKI SOICHIRO ET AL: "Transparent Cu2O solar cell for high-efficiency and low-cost tandem photovoltaics", 2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC), IEEE, 16 June 2019 (2019-06-16), pages 1061 - 1063, XP033702950, DOI: 10.1109/PVSC40753.2019.8980509
Attorney, Agent or Firm:
IKEGAMI, Tetsuma et al. (JP)
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