公开(公告)号：US10546969B2

公开(公告)日：2020-01-28

申请号：US14718161

申请日：2015-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naofumi Hayashi ,  Takahiro Mishima ,  Keiichiro Masuko

IPC: H01L21/00 ,  H01L31/075 ,  H01L31/0747 ,  H01L31/0224 ,  H01L31/18

Abstract: A solar cell is provided that comprising a semiconductor substrate having a first conductivity type; a first semiconductor layer having the first conductivity type, and on a principal surface of the semiconductor substrate; an insulation layer on the first semiconductor layer; a protective layer on the insulation layer; and a second semiconductor layer having a second conductivity type, and on the semiconductor substrate and the protective layer. A recessed region is positioned at a lateral side of the insulation layer, the recessed region formed by recessing a side surface of the insulation layer inward from a side surface of the first semiconductor layer and a side surface of the protective layer, and the second semiconductor layer is positioned in the recessed region above the first semiconductor layer in the recessed region.

公开(公告)号：US10014420B2

公开(公告)日：2018-07-03

申请号：US15220394

申请日：2016-07-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato Shigematsu ,  Naofumi Hayashi

IPC: H01L31/00 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/20 ,  H01L31/18 ,  H01L31/075

CPC classification number: H01L31/022441 ,  H01L31/0747 ,  H01L31/075 ,  H01L31/1804 ,  H01L31/20 ,  Y02E10/547 ,  Y02P70/521

Abstract: A solar cell includes: a semiconductor substrate having a light-receiving surface and a back surface; a first-conductivity-type first semiconductor layer on the back surface; a second-conductivity-type second semiconductor layer on the back surface; a first electrode electrically connected to the first semiconductor layer; a second electrode electrically connected to the second semiconductor layer; and an insulating layer in a boundary region between a first-conductivity-type region of the first semiconductor layer and a second-conductivity-type region of the second semiconductor layer. The insulating layer has an inclined side surface adjacent the second-conductivity-type region inclined such that the thickness of the insulating layer decreases with decreasing distance from the second-conductivity-type region. The width of the inclined surface in a direction perpendicular to the thickness direction of the insulating layer and toward the second-conductivity-type region is 10 to 300 times the thickness of the insulating layer in a region excluding the inclined surface.

公开(公告)号：US11114577B2

公开(公告)日：2021-09-07

申请号：US16361679

申请日：2019-03-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koichi Kubo ,  Tomohide Yoshida ,  Mamoru Arimoto ,  Naofumi Hayashi ,  Minoru Higuchi

IPC: H01L31/05 ,  H02S30/10 ,  H01L31/048 ,  H02S20/23

Abstract: This photovoltaic power generation device is provided with: a mounting bracket which is fixed to a roof and on which a frame, arranged on the ridge-side end of a solar cell module, and a frame, arranged on the eave-side end of a solar cell module, are mounted; and a fixing bracket which is arranged in the space between the frame and the frame, and which is fixed to the mounting bracket and holds said frames from above.

公开(公告)号：US20190222170A1

公开(公告)日：2019-07-18

申请号：US16360705

申请日：2019-03-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koichi Kubo ,  Naofumi Hayashi ,  Minoru Higuchi

IPC: H02S30/10 ,  H02S20/23 ,  F16B5/06

CPC classification number: H02S30/10 ,  F16B5/065 ,  H02S20/23 ,  Y02B10/12

Abstract: This photovoltaic power generation device is provided with: a mounting bracket which is fixed to a roof and on which a frame, arranged on the ridge-side end of a solar cell module, and a frame, arranged on the eave-side end of a solar cell module, are mounted; and a securing bracket for securing the frames to the mounting bracket. The ridge-side edge of the mounting bracket is inclined in the eaves-ridge direction and the girder direction of the roof.

公开(公告)号：US20190221696A1

公开(公告)日：2019-07-18

申请号：US16361679

申请日：2019-03-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koichi Kubo ,  Tomohide Yoshida ,  Mamoru Arimoto ,  Naofumi Hayashi ,  Minoru Higuchi

IPC: H01L31/05 ,  H01L31/048 ,  H02S30/10

CPC classification number: H01L31/05 ,  H01L31/048 ,  H02S20/23 ,  H02S30/10 ,  Y02B10/12

Abstract: This photovoltaic power generation device is provided with: a mounting bracket which is fixed to a roof and on which a frame, arranged on the ridge-side end of a solar cell module, and a frame, arranged on the eave-side end of a solar cell module, are mounted; and a fixing bracket which is arranged in the space between the frame and the frame, and which is fixed to the mounting bracket and holds said frames from above.

公开(公告)号：US10121917B2

公开(公告)日：2018-11-06

申请号：US15072903

申请日：2016-03-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naofumi Hayashi ,  Takahiro Mishima ,  Tsuyoshi Takahama ,  Tsutomu Yamaguchi

IPC: H01L31/00 ,  H01L31/0224 ,  H01L31/048 ,  H01L31/0747 ,  H01L31/0352 ,  H01L31/05

Abstract: A solar cell includes: a base substrate that has a principle surface; a first semiconductor layer provided in a first region on the principle surface; a second semiconductor layer provided in a second region on the principle surface; an n-side electrode provided on the first semiconductor layer; a p-side electrode provided on the second semiconductor layer; and grooves that separate the n-side electrode and the p-side electrode from each other. The respective widths of the grooves in a direction in which the n-side electrode and the p-side electrode are spaced apart are set to be wider in the outer peripheral region than in the inner region.

公开(公告)号：US09705027B2

公开(公告)日：2017-07-11

申请号：US15164874

申请日：2016-05-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naofumi Hayashi ,  Mitsuaki Morigami ,  Masato Shigematsu ,  Takahiro Mishima

IPC: H01L21/00 ,  H01L31/20 ,  H01L31/0747 ,  H01L31/0224 ,  H01L31/18

CPC classification number: H01L31/202 ,  H01L31/022441 ,  H01L31/022491 ,  H01L31/0747 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

Abstract: A solar cell manufacturing method includes: forming a first amorphous semiconductor layer of one conductivity type on a main surface of a semiconductor substrate; forming an insulation layer on the first amorphous semiconductor layer; etching to remove the insulation layer and the first amorphous semiconductor layer in a predetermined first region; forming a second amorphous semiconductor layer of an other conductivity type on the insulation layer after the etching, the other conductivity type being different from the one conductivity type; and etching to remove the second amorphous semiconductor layer in a predetermined second region, wherein the etching to remove the insulation layer and the first amorphous semiconductor layer in a predetermined first region includes: applying an etching paste to the insulation layer in the predetermined first region; and etching to remove the insulation layer and the first amorphous semiconductor layer in the predetermined first region using the etching paste.