公开(公告)号：US11125612B2

公开(公告)日：2021-09-21

申请号：US16808161

申请日：2020-03-03

Applicant: KANEKA CORPORATION

Inventor： Kunta Yoshikawa ,  Takashi Kuchiyama

IPC: H01L31/02 ,  G01J1/42 ,  G01J1/04 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/0232 ,  H01L31/103

Abstract: A photoelectric conversion element for detecting the spot size of incident light. The photoelectric conversion element includes a photoelectric conversion substrate having two principal surfaces, and the substrate includes a first sensitivity part and a second sensitivity part that are separated from each other. When a sensitivity area appearing on the principal surface of the first sensitivity part is defined as a first sensitivity area and a sensitivity area appearing on the principal surface of the second sensitivity part is defined as a second sensitivity area, the first sensitivity area receives at least a portion of incident light incident on a light receiving surface, and a pattern is formed such that an increase in an irradiation area of the principal surface irradiated with the incident light reduces the ratio of the first sensitivity area to the second sensitivity area in the irradiation area.

公开(公告)号：US10593820B2

公开(公告)日：2020-03-17

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: H02N6/00 ,  H01L31/042 ,  H01L31/043 ,  H01L31/0224 ,  H01L31/05 ,  H01L31/02 ,  H01L31/0216 ,  H01L31/0352 ,  H01L31/077 ,  H01L31/20

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：US20190393369A1

公开(公告)日：2019-12-26

申请号：US16556941

申请日：2019-08-30

Applicant: KANEKA CORPORATION

Inventor： Toru Terashita ,  Kunta Yoshikawa

IPC: H01L31/0224 ,  H01L31/02 ,  H01L31/05

Abstract: A solar cell module includes a solar cell string including a plurality of solar cells connected through a wiring member. The solar cell includes a photoelectric conversion section, a light-receiving-surface electrode disposed on a light-receiving surface of the photoelectric conversion section, and a metal film disposed on a back face of the photoelectric conversion section. The metal film has a plurality of openings along the extending direction of the wiring member, in a connection region between the solar cell and the wiring member. The wiring member is connected through an adhesive layer to the metal film and to the photoelectric conversion section exposed from the openings of the metal film or an electrode fixed on the photoelectric conversion section. There is a non-bonding portion between the metal film and the photoelectric conversion section.

公开(公告)号：US20190259885A1

公开(公告)日：2019-08-22

申请号：US16401555

申请日：2019-05-02

Applicant: KANEKA CORPORATION

Inventor： Kunta Yoshikawa

IPC: H01L31/0216 ,  H01L31/05 ,  H01L31/049 ,  H01L31/028 ,  H01L31/18 ,  H01L31/0747

Abstract: A solar cell includes a rectangular crystalline silicon substrate having a rectangular first principal surface, a rectangular second principal surface, a first lateral surface, and a second lateral surface, one or more thin films, and a non-natural oxide film of silicon. The rectangular second principal surface may be positioned on a side opposite to the first principal surface. The first lateral surface may connect a first long side of the first principal surface and a first long side of the second principal surface, and the second lateral surface may be positioned on a side opposite to the first lateral surface and connect a second long side of the first principal surface and a second long side of the second principal surface. At least one of the first principal surface or the second principal surface may be covered with the one or more thin-films.

公开(公告)号：US20180294366A1

公开(公告)日：2018-10-11

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 ,  H01L31/18 ,  H01L31/072

CPC classification number: H01L31/022441 ,  H01L31/072 ,  H01L31/0747 ,  H01L31/18 ,  H01L31/1804 ,  Y02E10/50 ,  Y02P70/521

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：US20150171241A1

公开(公告)日：2015-06-18

申请号：US14403392

申请日：2013-11-25

Applicant: KANEKA CORPORATION

Inventor： Nick Valckx ,  Masanori Kanematsu ,  Jose Luis Hernandez ,  Daisuke Adachi ,  Kunta Yoshikawa

IPC: H01L31/0224 ,  H01L31/0392

CPC classification number: H01L31/022466 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/03921 ,  H01L31/0747 ,  H01L31/1884 ,  H01L51/445 ,  Y02E10/542 ,  Y02E10/549 ,  Y02P70/521

Abstract: In a solar cell, a collecting electrode is provided on a transparent electrode of a photoelectric conversion section having the transparent electrode on the outermost surface on one main surface side. The collecting electrode includes a first electroconductive layer and a second electroconductive layer in this order from the photoelectric conversion section side. Preferably, a self-assembled monolayer is formed on a region on the transparent electrode layer, which is not provided with the first electroconductive layer. A method for manufacturing the solar cell includes: forming a first electroconductive layer on a transparent electrode layer; forming a self-assembled monolayer on a region on the transparent electrode layer, which is not provided with the first electroconductive layer; and bringing the first electroconductive layer and a plating solution into contact with each other to form the second electroconductive layer by a plating method, in this order.

Abstract translation: 在太阳能电池中，在一个主表面侧的最表面上具有透明电极的光电转换部的透明电极上设置集电极。 收集电极从光电转换部分侧依次包括第一导电层和第二导电层。 优选地，在未设置有第一导电层的透明电极层上的区域上形成自组装单层。 一种制造太阳能电池的方法包括：在透明电极层上形成第一导电层; 在不具有第一导电层的透明电极层的区域上形成自组装单层; 并且使第一导电层和电镀液彼此接触，通过电镀法依次形成第二导电层。

公开(公告)号：US11482637B2

公开(公告)日：2022-10-25

申请号：US16809526

申请日：2020-03-04

Applicant: KANEKA CORPORATION

Inventor： Kunta Yoshikawa

IPC: H01L31/16 ,  H01L31/10 ,  H01L31/054 ,  H01L31/0224 ,  H01L31/18

Abstract: A photoelectric conversion element for detecting the spot size of incident light, including a photoelectric conversion substrate provided with two main surfaces, and multiple first sensitivity sections and second sensitivity sections arranged in a prescribed direction. When sensitivity regions on the respective main surfaces of the multiple first sensitivity sections are defined as first sensitivity regions, and sensitivity regions that appear on the main surfaces of the second sensitivity sections are defined as second sensitivity regions, each of the first sensitivity regions receives at least a part of light incident on the main surfaces, and has a pattern in which, in accordance with enlargement of an irradiation region irradiated with incident light on the main surface, the proportion of the first sensitivity regions in the irradiation region with respect to the first sensitivity regions other than those in the irradiation region and the second sensitivity regions is decreased.

公开(公告)号：US11335818B2

公开(公告)日：2022-05-17

申请号：US17144911

申请日：2021-01-08

Applicant: KANEKA CORPORATION

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

IPC: H01L31/0224 ,  H01L31/18 ,  H01L31/0747 ,  H01L31/048

Abstract: A solar cell includes a semiconductor substrate, a first conductive layer, a second conductive layer, a first electrode, a second electrode, and an island-shaped conductive layer. The first conductive layer and the second conductive layer are disposed on one principal surface of the semiconductor substrate. The first electrode is disposed on the first conductive layer and the second electrode is disposed on the second conductive layer. The first electrode and the second electrode are electrically separated, and the island-shaped conductive layer is disposed between the first electrode and the second electrode.

公开(公告)号：US20210135027A1

公开(公告)日：2021-05-06

申请号：US17144911

申请日：2021-01-08

Applicant: KANEKA CORPORATION

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

IPC: H01L31/0224 ,  H01L31/0747 ,  H01L31/048 ,  H01L31/18

Abstract: A solar cell includes a semiconductor substrate, a first conductive layer, a second conductive layer, a first electrode, a second electrode, and an island-shaped conductive layer. The first conductive layer and the second conductive layer are disposed on one principal surface of the semiconductor substrate. The first electrode is disposed on the first conductive layer and the second electrode is disposed on the second conductive layer. The first electrode and the second electrode are electrically separated, and the island-shaped conductive layer is disposed between the first electrode and the second electrode.

公开(公告)号：US10964826B2

公开(公告)日：2021-03-30

申请号：US15033230

申请日：2014-10-29

Applicant: KANEKA CORPORATION

Inventor： Daisuke Adachi ,  Kunta Yoshikawa

IPC: H01L31/18 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/0216 ,  H01L31/046

Abstract: A photoelectric conversion section of a solar cell has a first electrode layer and a collecting electrode that are formed in this order on a first principal surface, and has a second electrode layer that is formed on a second principal surface. The collecting electrode includes a first electroconductive layer, an insulating layer, and a second electroconductive layer in this order on the first electrode layer. The first and second electroconductive layers are electrically connected via an opening section in the insulating layer. At peripheral edge of the first and second principal surfaces, the photoelectric conversion section has an insulating region excluding the first or second electrode layer. On the side of the principal surface having no insulating region, the first or second electrode layer is formed up to the peripheral end of the relevant principal surface.