公开(公告)号：US20240213384A1

公开(公告)日：2024-06-27

申请号：US18599293

申请日：2024-03-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasutaka Nishida ,  Naoyuki Nakagawa ,  Soichiro Shibasaki ,  Yuya Honishi ,  Yukitami Mizuno ,  Mutsuki Yamazaki ,  Atsushi Wada ,  Sara Yoshio ,  Kazushige Yamamoto

IPC: H01L31/032 ,  H01L31/0725

CPC classification number: H01L31/0321 ,  H01L31/0725

Abstract: Embodiments described herein relate generally to a n-type layer, a solar cell, a multi-junction solar cell, a solar cell module, and a photovoltaic power generation system. An n-type layer according to an embodiment includes amorphous gallium oxide as a main component. A conductive type of the n-type layer is n-type. One or more lanthanoid series elements whose amount is more than 0 [atom %] and 67 [atom %] or less of Ga contained in the amorphous gallium oxide are doped at Ga (II) site of the amorphous gallium oxide.

公开(公告)号：US20240194818A1

公开(公告)日：2024-06-13

申请号：US18581592

申请日：2024-02-20

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuya Honishi ,  Soichiro Shibasaki ,  Naoyuki Nakagawa ,  Yukitami Mizuno ,  Mutsuki Yamazaki ,  Yasutaka Nishida ,  Atsushi Wada ,  Sara Yoshio ,  Kazushige Yamamoto

IPC: H01L31/18 ,  H01L31/032 ,  H01L31/046 ,  H02S10/40

CPC classification number: H01L31/18 ,  H01L31/032 ,  H01L31/046 ,  H02S10/40

Abstract: A method for manufacturing a solar cell according to an embodiment includes forming a p-electrode on the substrate, forming a film containing cuprous oxide and/or a complex oxide of cuprous oxides as a main component on the p-electrode, and oxidizing the film containing the cuprous oxide and/or the complex oxide of cuprous oxides as a main component. A partial pressure of oxide of the oxidizing is 5000 [Pa] or more and 200000 [Pa] or less. A concentration of vapor water of the oxidizing is 9.4×10−1 [g/m3] or more and 2.5×103 [g/m3] or less. A temperature of the oxidizing is 40 [degrees Celsius] or more and 150 [degrees Celsius] or less. A duration time of the oxidizing is 10 [sec] or more and 150 [min] or less.

公开(公告)号：US20230387338A1

公开(公告)日：2023-11-30

申请号：US18448194

申请日：2023-08-11

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

Inventor： Atsushi Wada ,  Sara Yoshio ,  Soichiro Shibasaki ,  Yuya Honishi ,  Naoyuki Nakagawa ,  Yukitami Mizuno ,  Mutsuki Yamazaki ,  Yasutaka Nishida ,  Kazushige Yamamoto

IPC: H01L31/0465 ,  H01L31/0725

CPC classification number: H01L31/0465 ,  H01L31/0725

Abstract: According to one embodiment, a solar cell includes first and second conductive layers, first and second counter conductive layers, first and second photoelectric conversion layers, first and second compound layers. The first counter conductive layer includes a first conductive region. A direction from the first conductive layer to the first conductive region is along a first direction. The first compound layer includes a first compound region provided between the first photoelectric conversion layer and the first conductive region. A second direction from the first conductive layer to the second conductive layer crosses the first direction. The second counter conductive layer includes a second conductive region electrically connected with the first conductive layer. A direction from the second conductive layer to the second conductive region is along the first direction. A direction from the first conductive region to the second conductive region is along the second direction.

公开(公告)号：US11810993B2

公开(公告)日：2023-11-07

申请号：US16799987

申请日：2020-02-25

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

Inventor： Kazushige Yamamoto ,  Soichiro Shibasaki ,  Mutsuki Yamazaki ,  Naoyuki Nakagawa ,  Sara Yoshio

IPC: H01L31/0725 ,  H01L31/032 ,  H01L31/028 ,  H01L31/0272 ,  H01L33/34

CPC classification number: H01L31/0725 ,  H01L31/0323 ,  H01L31/028 ,  H01L31/02725 ,  H01L33/343

Abstract: A solar cell of an embodiment includes a p-electrode, a p-type light-absorbing layer directly in contact with the p-electrode, an n-type layer, and an n-electrode. The n-type layer is disposed between the p-type light-absorbing layer and the n-electrode. A region from an interface between the p-type light-absorbing layer and the p-electrode to 10 nm to 100 nm from the interface in a direction of the n-type layer is a p+ type region including a p-type dopant.

公开(公告)号：US11581444B2

公开(公告)日：2023-02-14

申请号：US17526018

申请日：2021-11-15

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

Inventor： Kazushige Yamamoto ,  Soichiro Shibasaki ,  Mutsuki Yamazaki ,  Naoyuki Nakagawa ,  Yuya Honishi ,  Sara Yoshio ,  Yoshiko Hiraoka

IPC: H01L31/0336 ,  H01L31/068 ,  H01L31/0725 ,  H01L31/032

Abstract: The solar cell of embodiments includes a transparent first electrode, a photoelectric conversion layer mainly containing cuprous oxide on the first electrode, an n-type layer on the photoelectric conversion layer, and a transparent second electrode on the n-type layer. A mixed region or/and a mixed layer are present on the n-type layer side of the photoelectric conversion layer, and the mixed region and the mixed layer 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.

公开(公告)号：US10770902B2

公开(公告)日：2020-09-08

申请号：US15911316

申请日：2018-03-05

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: H02S40/36 ,  H02S30/10 ,  H02J3/38 ,  H01L31/0687 ,  H01L31/032 ,  H02S40/30 ,  H01L31/02 ,  H01L31/05 ,  H01L31/028

Abstract: According to one embodiment, a solar cell system includes a first solar cell including a first terminal and a second terminal, a second solar cell including a third terminal and a fourth terminal, and a voltage converter including a fifth terminal and a sixth terminal. The third terminal is electrically connected to the first terminal. The fifth terminal is electrically connected to the fourth terminal. The voltage converter causes a second absolute value to be smaller than a first absolute value. The first absolute value is of a difference between a first potential difference and a second potential difference. The first potential difference is between the first and second terminals. The second potential difference is between the first and fourth terminals. The second absolute value is of a difference between the first and third potential differences. The third potential difference is between the first and sixth terminals.

公开(公告)号：US20190280142A1

公开(公告)日：2019-09-12

申请号：US16113170

申请日：2018-08-27

Applicant: Kabushiki Kaisha Toshiba

Inventor： Soichiro SHIBASAKI ,  Sara Yoshio ,  Naoyuki Nakagawa ,  Mutsuki Yamazaki ,  Kazushige Yamamoto ,  Yuya Honishi

IPC: H01L31/061 ,  H01L31/0216 ,  H01L31/0725 ,  H01L31/0749 ,  H01L31/18 ,  H02S40/32 ,  H02S40/38

Abstract: According to one embodiment, a solar cell includes a first electrode, a second electrode, a light-absorbing layer, and a plurality of metal parts. The light-absorbing layer is interposed between the first electrode and the second electrode. The metal parts are present on a surface of the first electrode opposing the second electrode. A void is provided in at least a part between the metal parts.

公开(公告)号：US20190089162A1

公开(公告)日：2019-03-21

申请号：US15911316

申请日：2018-03-05

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: H02J3/38 ,  H01L31/0687 ,  H01L31/032 ,  H01L31/028 ,  H01L31/02 ,  H01L31/05 ,  H02S40/30

Abstract: According to one embodiment, a solar cell system includes a first solar cell including a first terminal and a second terminal, a second solar cell including a third terminal and a fourth terminal, and a voltage converter including a fifth terminal and a sixth terminal. The third terminal is electrically connected to the first terminal. The fifth terminal is electrically connected to the fourth terminal. The voltage converter causes a second absolute value to be smaller than a first absolute value. The first absolute value is of a difference between a first potential difference and a second potential difference. The first potential difference is between the first and second terminals. The second potential difference is between the first and fourth terminals. The second absolute value is of a difference between the first and third potential differences.The third potential difference is between the first and sixth terminals.

公开(公告)号：US09774030B2

公开(公告)日：2017-09-26

申请号：US14482155

申请日：2014-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke Matsuno ,  Takashi Kuboki ,  Keiko Okamoto ,  Norikazu Osada ,  Sara Yoshio

IPC: H01M4/134 ,  H01M4/131 ,  H01M4/485 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/134 ,  H01M4/131 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M10/0525 ,  H01M2004/021

Abstract: A nonaqueous electrolyte secondary battery of an embodiment includes an exterior member; a positive electrode housed in the exterior member, a negative electrode containing an active material and housed in the exterior member so as to be spatially separated from the positive electrode via a separator, and a nonaqueous electrolyte filled in the exterior member. The negative electrode includes a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. A tensile strength of the negative electrode is 400 N/mm2 or more and 1200 N/mm2 or less. A peel strength between the negative electrode current collector and the negative electrode active material layer is 1.5 N/cm or more and 4 N/cm or less.