Title:
PHOTOELECTRIC CONVERSION LAYER, SOLAR CELL, MULTI-JUNCTION SOLAR CELL, SOLAR CELL MODULE, AND PHOTOVOLTAIC POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/019819
Kind Code:
A1
Abstract:
Embodiments provide a photoelectric conversion layer, a solar cell, a multi-junction solar cell, a solar cell module, and a photovoltaic power system having improved characteristics. The photoelectric conversion layer of the embodiment is based on Cu2O, contains at least one p-type dopant selected from the group consisting of Ge, Ta, and In, and has a band gap of equal to or more than 2.10 eV and equal to or less than 2.30 eV.
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Inventors:
YAMAMOTO KAZUSHIGE (JP)
YAMAZAKI MUTSUKI (JP)
SHIBASAKI SOICHIRO (JP)
HONISHI YUYA (JP)
NAKAGAWA NAOYUKI (JP)
HIRAOKA YOSHIKO (JP)
YAMAZAKI MUTSUKI (JP)
SHIBASAKI SOICHIRO (JP)
HONISHI YUYA (JP)
NAKAGAWA NAOYUKI (JP)
HIRAOKA YOSHIKO (JP)
Application Number:
PCT/JP2020/010292
Publication Date:
February 04, 2021
Filing Date:
March 10, 2020
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H01L31/0336; H01L31/0725
Domestic Patent References:
| WO2019146119A1 | 2019-08-01 | |||
| WO2020059053A1 | 2020-03-26 |
Foreign References:
| JP2006124754A | 2006-05-18 | |||
| JP2018046196A | 2018-03-22 |
Other References:
ISHIZUKA S ET AL: "NITROGEN DOPING INTO CU2O THIN FILMS DEPOSITED BY REACTIVE RADIO-FREQUENCY MAGNETRON SPUTTERING", JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOCIETY OF APPLIED PHYSICS, JP, vol. 40, no. 4B, PART 01, 1 April 2001 (2001-04-01), pages 2765 - 2768, XP001078179, ISSN: 0021-4922, DOI: 10.1143/JJAP.40.2765
ISHIZUKA SHOGO ET AL: "Control of the growth orientation and electrical properties of polycrystalline Cu2O thin films by group-IV elements doping", APPLIED PHYSICS LETTERS, A I P PUBLISHING LLC, US, vol. 85, no. 21, 1 January 2004 (2004-01-01), pages 4920 - 4922, XP012063502, ISSN: 0003-6951, DOI: 10.1063/1.1827352
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
ISHIZUKA SHOGO ET AL: "Control of the growth orientation and electrical properties of polycrystalline Cu2O thin films by group-IV elements doping", APPLIED PHYSICS LETTERS, A I P PUBLISHING LLC, US, vol. 85, no. 21, 1 January 2004 (2004-01-01), pages 4920 - 4922, XP012063502, ISSN: 0003-6951, DOI: 10.1063/1.1827352
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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