公开(公告)号：US10205040B2

公开(公告)日：2019-02-12

申请号：US15991702

申请日：2018-05-29

Applicant: KANEKA CORPORATION

Inventor： Gensuke Koizumi ,  Daisuke Adachi ,  Kunihiro Nakano

IPC: H01L31/02 ,  H01L31/04 ,  H01L31/05 ,  H01L31/18 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/0747

Abstract: A method for manufacturing a solar cell comprises forming a first conductivity-type silicon-based thin-film on a first surface of a substrate; forming a second conductivity-type silicon-based thin-film different from the first conductivity-type silicon-based thin-film, on a second surface of the substrate that is opposite to the first surface of the substrate; forming a first transparent electrode layer on the first conductivity-type silicon-based thin-film; and forming a second transparent electrode layer on the second conductivity-type silicon-based thin-film; forming a first metal seed layer on a first transparent electrode layer; forming a second metal seed layer on a second transparent electrode layer; forming a third metal seed layer on a peripheral edge and on an end-edge of the second conductivity-type silicon-based thin-film; forming a first plating layer on the first metal seed layer and a third plating layer on the third metal seed layer simultaneously by an electroplating method.

公开(公告)号：US20180254375A1

公开(公告)日：2018-09-06

申请号：US15971744

申请日：2018-05-04

Applicant: Kaneka Corporation

Inventor： Daisuke Adachi ,  Toru Terashita ,  Toshihiko Uto

IPC: H01L31/18 ,  H01L31/20 ,  H01L31/0236 ,  H01L31/0224 ,  H01L31/0747

CPC classification number: H01L31/1884 ,  H01L31/022441 ,  H01L31/022466 ,  H01L31/022475 ,  H01L31/02363 ,  H01L31/0747 ,  H01L31/202 ,  Y02E10/50 ,  Y02P70/521

Abstract: A method for manufacturing a crystalline silicon-based solar cell includes forming a first intrinsic silicon-based thin-film on a first principal surface and a lateral surface of an n-type crystalline silicon substrate, forming a p-type silicon-based thin-film on the first intrinsic silicon-based thin-film, forming a first transparent electrode layer on an entire region of the first principal surface except for a peripheral portion, forming a second intrinsic silicon-based thin-film on a second principal surface and the lateral surface of the n-type crystalline silicon substrate, forming an n-type silicon-based thin-film on the second intrinsic silicon-based thin-film, forming a second transparent electrode layer on an entire region of the second principal surface and the lateral surface of the n-type crystalline silicon substrate, forming a patterned collecting electrode on the first transparent electrode layer, and forming a plated metal electrode on the second transparent electrode layer by an electroplating method.

公开(公告)号：US20180122964A1

公开(公告)日：2018-05-03

申请号：US15856911

申请日：2017-12-28

Applicant: Kaneka Corporation

Inventor： Daisuke Adachi ,  Tooru Irie ,  Toru Terashita

IPC: H01L31/0236 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/18 ,  H01L31/048

CPC classification number: H01L31/02363 ,  H01L31/022425 ,  H01L31/022475 ,  H01L31/02366 ,  H01L31/048 ,  H01L31/0504 ,  H01L31/056 ,  H01L31/0747 ,  H01L31/1884 ,  Y02E10/50 ,  Y02P70/521

Abstract: A solar cell includes: a cell main body part including a back electrode and a photoelectric conversion section, the back electrode being arranged on a back surface of the photoelectric conversion section; and a metal film disposed in contact with the back electrode of the cell main body part. The back electrode includes a plurality of projections or recesses with an arithmetic mean roughness of more than 0.1 μm. The metal film has an arithmetic mean roughness of more than 0.1 μm on a surface contacting the back electrode. The metal film covers at least 10% of a back surface of the cell main body part.

公开(公告)号：US09812594B2

公开(公告)日：2017-11-07

申请号：US14997404

申请日：2016-01-15

Applicant: KANEKA CORPORATION

Inventor： Daisuke Adachi ,  Kenji Yamamoto ,  Jose Luis Hernandez ,  Nick Valckx

IPC: H01L31/00 ,  H01L31/0224 ,  H01L31/0445

CPC classification number: H01L31/022475 ,  H01L31/022425 ,  H01L31/0445 ,  Y02E10/542 ,  Y02P70/521

Abstract: Disclosed is a solar cell having a collecting electrode on one main surface of a photoelectric conversion section. The collecting electrode includes a first electroconductive layer and a second electroconductive layer in this order from the photoelectric conversion section side, and further includes an insulating layer between the first electroconductive layer and the second electroconductive layer. The first electroconductive layer includes a low-melting-point material, and a part of the second electroconductive layer is conductively connected with the first electroconductive layer through, for example, an opening in the insulating layer. The second electrode layer is preferably formed by a plating method. In addition, it is preferable that before forming the second electroconductive layer, annealing by heating is carried out to generate the opening section in the insulating layer.

公开(公告)号：US09761752B2

公开(公告)日：2017-09-12

申请号：US14892456

申请日：2014-05-20

Applicant: KANEKA CORPORATION

Inventor： Hisashi Uzu ,  Daisuke Adachi

IPC: H01L51/00 ,  H01L31/18 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/0747

CPC classification number: H01L31/1884 ,  H01L31/02167 ,  H01L31/02168 ,  H01L31/022425 ,  H01L31/0747 ,  Y02E10/50

Abstract: An electrode layer formation step of forming an electrode layer including the first electrode and a removal-target body on a first main surface side of a photoelectric conversion part; an insulating layer formation step of forming an insulating layer so as to cover at least the removal-target body; an opening formation step of forming an opening in the insulating layer by utilizing the removal-target body; and a metal layer formation step of forming a metal layer on the electrode layer through the opening of the insulating layer by a plating method are performed in this order. In the opening formation step, at least a part of the removal-target body is removed by irradiation by a laser beam, so that the opening of the insulating layer is formed.

公开(公告)号：US20170084772A1

公开(公告)日：2017-03-23

申请号：US15308030

申请日：2015-04-09

Applicant: KANEKA CORPORATION

Inventor： Toshihiko Uto ,  Daisuke Adachi ,  Hisashi Uzu

IPC: H01L31/0747 ,  H01L31/18 ,  H01L31/05 ,  H01L31/0352 ,  H01L31/0224 ,  H01L31/0216

CPC classification number: H01L31/0747 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/03529 ,  H01L31/0504 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

Abstract: The crystalline silicon-based solar cell according to the present invention includes a first intrinsic silicon-based thin-film, a p-type silicon-based thin-film, a first transparent electrode layer, and a patterned collecting electrode on a first principal surface of an n-type crystalline silicon substrate; and a second intrinsic silicon-based thin-film, an n-type silicon-based thin-film, a second transparent electrode layer, and a plated metal electrode on a second principal surface of the n-type crystalline-silicon substrate. On a peripheral edge of the first principal surface, an insulating region freed of a short-circuit between the first transparent electrode layer and the second transparent electrode layer is provided. The plated metal electrode is formed on an entire region of the second transparent electrode layer.

公开(公告)号：US09147780B2

公开(公告)日：2015-09-29

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: H01L31/0216 ,  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。