公开(公告)号：US20190319149A1

公开(公告)日：2019-10-17

申请号：US16341848

申请日：2017-10-04

Applicant: KANEKA CORPORATION

Inventor： Kunihiro Nakano ,  Hisashi Uzu ,  Kenji Yamamoto

IPC: H01L31/054 ,  H02S40/20

Abstract: A photovoltaic device according to the present disclosure is provided with: a condensing optical system having chromatic aberration; a first photoelectric converter, which is arranged on an optical axis of the condensing optical system; and a second photoelectric converter, which is arranged on an outer peripheral side of the first photoelectric converter when viewed from an optical axis direction of the condensing optical system, and which has a bandgap lower than a bandgap of the first photoelectric converter, wherein the first photoelectric converter is arranged on an inner side of a rectangle that circumscribes a condensing region of absorbable longest-wavelength light determined based on the bandgap.

公开(公告)号：US10446698B2

公开(公告)日：2019-10-15

申请号：US16002310

申请日：2018-06-07

Applicant: Kaneka Corporation

Inventor： Katsunori Konishi ,  Kunta Yoshikawa ,  Hayato Kawasaki ,  Kunihiro Nakano

IPC: H01L31/0224 ,  H01L31/0747 ,  H01L31/072 ,  H01L31/18

Abstract: A photoelectric conversion device includes, on one principal surface of a semiconductor substrate, a first conductivity-type region, a second conductivity-type region, and a boundary region which is in contact with each of the first conductivity-type region and the second conductivity-type region to separate these two regions. A first conductivity-type semiconductor layer is disposed over the entire first conductivity-type region and extending over the boundary region. A second conductivity-type semiconductor layer is disposed over the entire second conductivity-type region and extending over the boundary region. An insulating layer is disposed over the entire boundary region. A first electrode is disposed over the entire first conductivity-type region and extending over the boundary region, and a second electrode is disposed over the second conductivity-type region. The second electrode is not disposed over a region where the first conductivity-type semiconductor layer is formed, and thus is separated from the first electrode.

公开(公告)号：US10340848B2

公开(公告)日：2019-07-02

申请号：US15108199

申请日：2014-12-22

Applicant: KANEKA CORPORATION

Inventor： Kunta Yoshikawa ,  Hayato Kawasaki ,  Kunihiro Nakano ,  Kenji Yamamoto

IPC: H02S50/10 ,  H01L31/05 ,  H01L31/0224 ,  H01L31/18 ,  H01L31/068

Abstract: An I-V measurement method is provided for a solar cell having a collecting electrode on the first surface side of a single-crystalline silicon substrate of a first conductivity type and having a transparent electrode on the outermost surface on the second surface side of the single-crystalline silicon substrate of the first conductivity-type. An electric current is supplied to the solar cell in a state in which flexible metal foil and the transparent electrode are brought into detachable contact with each other such that the flexible metal foil follows undulations of the single-crystalline silicon substrate of a first conductivity type, and the first surface is set as a light-receiving surface. It is preferable that at least on a portion that is in contact with the transparent electrode, the metal foil is formed of at least one selected from the group consisting of Sn, Ag, Ni, In, and Cu.

公开(公告)号：US20190109253A1

公开(公告)日：2019-04-11

申请号：US16197843

申请日：2018-11-21

Applicant: KANEKA CORPORATION

Inventor： Hayato Kawasaki ,  Kunta Yoshikawa ,  Kunihiro Nakano ,  Katsunori Konishi

IPC: H01L31/0747 ,  H01L31/0224 ,  H01L31/046 ,  H01L31/20 ,  H01L31/0216

Abstract: A solar cell includes a conductive crystalline silicon substrate, a first conductive silicon layer, a second conductive silicon layer, a first intrinsic silicon layer, and a second intrinsic silicon layer. The first conductive silicon layer and the second conductive silicon layer are disposed on one principal surface of the conductive crystalline silicon substrate and are electrically insulated from each other. The second conductive silicon layer includes a first portion and a second portion, where the first portion is separated from the conductive crystalline silicon substrate by the first intrinsic silicon layer and the first conductive silicon layer, and where the second portion is separated from the conductive crystalline silicon substrate by the second intrinsic silicon layer. The first intrinsic silicon layer has a greater thickness than the second intrinsic silicon layer.

公开(公告)号：US20170125619A1

公开(公告)日：2017-05-04

申请号：US15128360

申请日：2015-03-26

Applicant: KANEKA CORPORATION

Inventor： Kunihiro Nakano ,  Kunta Yoshikawa ,  Toru Terashita ,  Masafumi Hiraishi ,  Kenji Yamamoto

IPC: H01L31/043 ,  H01L31/02 ,  H01L31/077 ,  H01L31/0216 ,  H01L31/20 ,  H01L31/05 ,  H01L31/0352 ,  H01L31/0224

Abstract: In the solar cell module, a first solar cell and a second solar cell are stacked together with an electroconductive member interposed therebetween, such that a cleaved surface-side periphery on a light-receiving surface of the first solar cell overlaps a periphery on a back surface of the second solar cell. The first solar cell and the second solar cell each have: photoelectric conversion section including a crystalline silicon substrate; collecting electrode; and back electrode. At a section where the first solar cell and the second solar cell are stacked, the collecting electrode of the first solar cell and the back electrode of the second solar cell are electrically connected to each other by coming into contact with the electroconductive member. An insulating member is provided on a part of the cleaved surface-side periphery on the light-receiving surface of the first solar cell, where the collecting electrode is not provided.

公开(公告)号：US20160329862A1

公开(公告)日：2016-11-10

申请号：US15108199

申请日：2014-12-22

Applicant: KANEKA CORPORATION

Inventor： Kunta Yoshikawa ,  Hayato Kawasaki ,  Kunihiro Nakano ,  Kenji Yamamoto

IPC: H02S50/10 ,  H01L31/0224 ,  H01L31/05 ,  H01L31/18

CPC classification number: H02S50/10 ,  H01L31/022466 ,  H01L31/05 ,  H01L31/068 ,  H01L31/1804

Abstract: An I-V measurement method is provided for a solar cell having a collecting electrode on the first surface side of a single-crystalline silicon substrate of a first conductivity type and having a transparent electrode on the outermost surface on the second surface side of the single-crystalline silicon substrate of the first conductivity-type. An electric current is supplied to the solar cell in a state in which flexible metal foil and the transparent electrode are brought into detachable contact with each other such that the flexible metal foil follows undulations of the single-crystalline silicon substrate of a first conductivity type, and the first surface is set as a light-receiving surface. It is preferable that at least on a portion that is in contact with the transparent electrode, the metal foil is formed of at least one selected from the group consisting of Sn, Ag, Ni, In, and Cu.

Abstract translation: 在具有第一导电型的单晶硅基板的第一表面侧的具有集电极的太阳能电池中提供IV测量方法，并且在单晶的第二表面侧的最表面上具有透明电极 硅衬底的第一导电型。 在柔性金属箔和透明电极彼此分离接触的状态下，向太阳能电池供给电流，使得柔性金属箔沿着第一导电类型的单晶硅基板的起伏， 并且第一表面被设置为光接收表面。 优选至少在与透明电极接触的部分上，金属箔由选自Sn，Ag，Ni，In和Cu中的至少一种形成。