公开(公告)号：US20230215965A1

公开(公告)日：2023-07-06

申请号：US18181607

申请日：2023-03-10

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Kazushige Yamamoto ,  Yukitami Mizuno ,  Yuya Honishi ,  Soichiro Shibasaki ,  Naoyuki Nakagawa ,  Yasutaka Nishida ,  Mutsuki Yamazaki

IPC分类号： H01L31/0687 ,  H01L31/0336

CPC分类号： H01L31/0687 ,  H01L31/0336

摘要： A solar cell according to an embodiment includes a p-electrode, a p-type light-absorbing layer containing a cuprous oxide or/and a complex oxide of cuprous oxides as a main component on the p-electrode, an n-type layer containing an oxide containing Ga on the p-type light-absorbing layer, and an n-electrode. A first region is included between the p-type light-absorbing layer and the n-type layer. The first region is a region from a depth of 2 nm from an interface between the p-type light-absorbing layer and the n-type layer toward the p-type light absorbing layer to a depth of 2 nm from the interface between the p-type light-absorbing layer and the n-type layer toward the n-type layer. Cu, Ga, M1, and O are contained in the first region. M1 is one or more elements selected from the group consisting of Sn, Sb, Ag, Li, Na, K, Cs, Rb, Al, In, Zn, Mg, Si, Ge, N, B, Ti, Hf, Zr, and Ca. A ratio of Cu, Ga, M1, and O is a1:b1:c1:d1. a1, b1, c1, and d1 satisfy 1.80≤a1≤2.20, 0.005≤b1≤0.05, 0≤c1≤0.20, and 0.60≤d1≤1.00.

公开(公告)号：US20230125003A1

公开(公告)日：2023-04-20

申请号：US17898512

申请日：2022-08-30

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Naoyuki Nakagawa ,  Yukitami Mizuno ,  Soichiro Shibasaki ,  Yuya Honishi ,  Mutsuki Yamazaki ,  Yoshiko Hiraoka ,  Kazushige Yamamoto

IPC分类号： H01L31/032 ,  H01L31/0224 ,  H01L31/0725

摘要： A solar cell of an embodiment includes a p-electrode; an n-electrode; a p-type light-absorbing layer located between the p-electrode and the n-electrode and mainly containing a cuprous oxide; and an n-type layer located between the first n-type layer and the n-electrode, the n-type layer including a first n-type layer and a second n-type layer or a first n-type region and a second n-type region; wherein the first n-type layer and the first n-type region is located on the p-type light-absorbing layer side, the second n-type layer and the second n-type region is located on the n-electrode side, the first n-type layer and the first n-type region mainly contain a compound represented by Gax1M1x2Ox3, the M1 is one or more selected from the group consisting of Hf, Zr, In, Zn, Ti, Al, B, Sn, Si, and Ge, the x1, the x2, and the x3 are more than 0, and the x3 when a sum of the x1 and the x2 is 2 is 3.0 or more and 3.8 or less, the second n-type layer and the second n-type region mainly contain a compound represented by Gay1Zny2M2y3M3y4Oy5, the M2 is one or more selected from the group consisting of Hf, Zr, In, Ti, Al, B, Si, and Ge, the M3 is Sn or/and Mg, the y1, the y2, the y3, and the y4 are 0 or more, a sum of the y3 and the y4 is more than 0, and the y5 when a sum of the y1, the y2, the y3, and the y4 is 2 is 2.2 or more and 3.6 or less.

公开(公告)号：US20230086765A1

公开(公告)日：2023-03-23

申请号：US17898513

申请日：2022-08-30

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Kazushige Yamamoto ,  Naoyuki Nakagawa ,  Yukitami Mizuno ,  Soichiro Shibasaki ,  Yuya Honishi ,  Mutsuki Yamazaki ,  Yasutaka Nishida

IPC分类号： H01L31/072

摘要： A solar cell of an embodiment includes a p-electrode, an n-electrode, a p-type light-absorbing layer located between the p-electrode and the n-electrode and mainly containing a cuprous oxide, and an n-type layer that includes a first n-type layer which is located between the p-type light-absorbing layer and the n-electrode, which mainly contains a compound represented by Gav1Znv2Snv3M1v4Ov5, the M1 being one or more selected from the group consisting of Hf, Zr, In, Ti, Al, B, Mg, Si, and Ge, the v1, the v2, and the v4 being numerical values of 0.00 or more, the v3 and the v5 being numerical values of more than 0, at least one of the v1 and the v2 being a numerical value of more than 0, and the v5 when a sum of the v1, the v2, the v3, and the v4 is 1 being 1.00 or more and 2.00 or less, and which is located on the n-electrode side, and a second n-type layer which is a layer that mainly contains a compound represented by Gaw1M2w2M3w3M4w4Ow5, the M2 being Al or/and B, the M3 is one or more selected from the group consisting of In, Ti, Zn, Hf, and Zr, the M4 being one or more selected from the group consisting of Sn, Si, and Ge, the w1 and the w5 being numerical values of more than 0, the w2, the w3, and the w4 being numerical values of 0.00 or more, and the w5 when a sum of the w1, the w2, the w3, and the w4 is 2 being 3.00 or more and 3.80 or less, and which is located on the p-type light-absorbing layer side.

公开(公告)号：US20230006087A1

公开(公告)日：2023-01-05

申请号：US17938990

申请日：2022-09-07

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Soichiro Shibasaki ,  Yuya Honishi ,  Naoyuki Nakagawa ,  Mutsuki Yamazaki ,  Yukitami Mizuno ,  Yasutaka Nishida ,  Kazushige Yamamoto

IPC分类号： H01L31/072 ,  H01L31/0336 ,  H01L31/05

摘要： A solar cell of an embodiment includes a p-electrode, an n-electrode, a p-type light-absorbing layer located between the p-electrode and the n-electrode and mainly containing a cuprous oxide, and a first n-type layer which is located between the p-type light-absorbing layer and the n-electrode, which mainly contains a compound represented by Gax1M1x2M2x3M3x4M4x5Ox6, the M1 being Hf and/or Zr, the M2 being one or more selected from the group consisting of In, Ti, and Zn, the M3 being Al and/or B, the M4 is one or more selected from the group consisting of Sn, Si, and Ge, the x1, the x2, and the x6 being more than 0, the x3, the x4, and the x5 being 0 or more, and the x6 when a sum of the x1, the x2, the x3, the x4, and the x5 is 2 being 3.0 or more and 3.8 or less.

公开(公告)号：US11171253B2

公开(公告)日：2021-11-09

申请号：US15691984

申请日：2017-08-31

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Soichiro Shibasaki ,  Miyuki Shiokawa ,  Sara Yoshio ,  Naoyuki Nakagawa ,  Yukitami Mizuno ,  Kohei Nakayama ,  Mutsuki Yamazaki ,  Yoshiko Hiraoka ,  Kazushige Yamamoto ,  Yuya Honishi ,  Takeshi Niimoto

IPC分类号： H01L31/054 ,  H01L31/046 ,  H01L31/0224 ,  H01L31/032

摘要： A solar cell of an embodiment includes: a first electrode; a second electrode; a light-absorbing layer interposed between the first electrode and the second electrode; a dot region interposed between the first electrode and the light-absorbing layer, the dot region including dots.

公开(公告)号：US20200006583A1

公开(公告)日：2020-01-02

申请号：US16563994

申请日：2019-09-09

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Soichiro Shibasaki ,  Mutsuki Yamazaki ,  Kazushige Yamamoto ,  Yuya Honishi

IPC分类号： H01L31/0445 ,  H01L31/0687 ,  H01L31/0224 ,  H01L31/032 ,  H02S40/38

摘要： A solar cell of an embodiment includes: a p-electrode in which a first p-electrode and a second p-electrode are laminated; a p-type light-absorbing layer in direct contact with the first p-electrode; an n-type layer in direct contact with the p-type light-absorbing layer; and an n-electrode. The first p-electrode is disposed between the p-type light-absorbing layer and the second p-electrode. The p-type light-absorbing layer is disposed between the n-type layer and the first p-electrode. The n-type layer is disposed between the p-type light-absorbing layer and the n-electrode. The first p-electrode includes a metal oxide containing Sn as a main component.

公开(公告)号：US20230231065A1

公开(公告)日：2023-07-20

申请号：US18175739

申请日：2023-02-28

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Kazushige Yamamoto ,  Soichiro Shibasaki ,  Yuya Honishi ,  Naoyuki Nakagawa ,  Yukitami Mizuno ,  Mutsuki Yamazaki ,  Yasutaka Nishida

IPC分类号： H01L31/05 ,  H01L31/043 ,  H01L31/02

CPC分类号： H01L31/0504 ,  H01L31/043 ,  H01L31/02008

摘要： A tandem solar cell according to an embodiment includes a top cell string, a bottom cell string, a top cell module, a first string connection, a bottom cell module, and a second string connection. The top cell string is formed by electrically connecting a plurality of top cells. The bottom cell string is formed by electrically connecting a plurality of bottom cells. The bottom cell string is arranged so as to overlap the top cell string in a plan view in a thickness direction of the top cell. The first string connection includes a first extending portion extending to an outside of the top cell module in the plan view. A plurality of bottom cell strings are electrically connected to the bottom cell module. The first extending portion and the second extending portion are arranged apart from each other in the plan view.

公开(公告)号：US11430903B2

公开(公告)日：2022-08-30

申请号：US16563993

申请日：2019-09-09

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Yuya Honishi ,  Mutsuki Yamazaki ,  Soichiro Shibasaki ,  Sara Yoshio ,  Naoyuki Nakagawa ,  Kazushige Yamamoto

IPC分类号： H01L31/0725 ,  H01L31/0224 ,  H01L31/074 ,  H01L31/0747

摘要： A multi-junction solar cell module of an embodiment includes: a first solar cell module disposed on a light incident side and including a plurality of first solar cells and a first connection wiring electrically connecting the plurality of the first solar cells; a second solar cell module including a plurality of second solar cells and a second connection wiring electrically connecting the plurality of the second solar cells; and an adhesive layer between the first solar cell module and the second solar cell module.

公开(公告)号：US20210408315A1

公开(公告)日：2021-12-30

申请号：US17469940

申请日：2021-09-09

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Kazushige Yamamoto ,  Soichiro Shibasaki ,  Yuya Honishi ,  Naoyuki Nakagawa ,  Mutsuki Yamazaki ,  Yoshiko Hiraoka

IPC分类号： H01L31/05 ,  H01L31/073 ,  H01L31/0725 ,  H01L31/0224

摘要： A solar cell of an embodiment includes: a transparent substrate; a p-electrode on the substrate, the p-electrode including a first p-electrode containing an Sn-based metal oxide, a second p-electrode having an opening and consisting of a wiring containing a metal or graphene, and a third p-electrode containing an In-based metal oxide; a p-type light absorbing layer in direct contact with a surface of the first p-electrode on a side opposite to the second p-electrode side; an n-type layer provided on the p-type light absorbing layer; and an n-electrode provided on the n-type layer. The third p-electrode is provided to be present between the first p-electrode and the second p-electrode and to be in direct contact with an upper surface of the second p-electrode. An entire side surface of the second p-electrode is in direct contact with the first p-electrode.

公开(公告)号：US20210184066A1

公开(公告)日：2021-06-17

申请号：US17184642

申请日：2021-02-25

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

发明人： Yuya Honishi ,  Soichiro Shibasaki ,  Naoyuki Nakagawa ,  Mutsuki Yamazaki ,  Yoshiko Hiraoka ,  Kazushige Yamamoto

IPC分类号： H01L31/0725 ,  H01L31/0336 ,  H01L31/0236

摘要： A solar cell according to an embodiment includes a first electrode being transparent, a first semiconductor layer on the first electrode, a second semiconductor layer on the first semiconductor layer, and a second electrode being transparent on the second semiconductor layer, wherein grooves exist regularly on a surface of the first semiconductor layer facing a side of the second semiconductor layer.