公开(公告)号：US11152519B2

公开(公告)日：2021-10-19

申请号：US16444866

申请日：2019-06-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsuyoshi Takahama

IPC: H01L31/044 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/0352 ,  H01L31/05

Abstract: A manufacturing method for a solar cell is provided. The method includes: preparing a photoelectric converter which includes a light receiving surface and a back surface opposed to the light receiving surface and has n-type regions and p-type regions alternately arranged in a first direction on the back surface; forming a groove which is extended in the first direction on the light receiving surface after an electrode layer is formed on the n-type regions and the p-type regions; and dividing the photoelectric converter into a plurality of sub-cells along the groove.

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：US10367105B2

公开(公告)日：2019-07-30

申请号：US15064172

申请日：2016-03-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsuyoshi Takahama

IPC: H01L31/044 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/0352 ,  H01L31/05

Abstract: A solar cell includes a photoelectric converter having n-type regions and p-type regions alternately arranged in a first direction on a back surface and an electrode layer provided on the back surface. The photoelectric converter includes a plurality of sub-cells arranged in a second direction intersecting with the first direction and an isolation region provided on a boundary between adjacent sub-cells. The electrode layer includes an n-side electrode provided on the n-type region in the sub-cell at the end of the sub-cells, a p-side electrode provided on the p-type region in the sub-cell at the other end, and a sub-electrode provided over two adjacent sub-cells. The sub-electrode connects the n-type region provided in one sub-cell of the two adjacent sub-cells to the p-type region provided in the other sub-cell.

公开(公告)号：US20190181291A1

公开(公告)日：2019-06-13

申请号：US16279359

申请日：2019-02-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsuyoshi Takahama ,  Wataru Shinohara ,  Yoshinari Ichihashi ,  Naoki Yoshimura

IPC: H01L31/0747 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/18 ,  H01L31/20 ,  H01L21/268

Abstract: A method for manufacturing a solar cell, including: a step for irradiating a semiconductor substrate to cause the surface to become amorphous and to form an intrinsic amorphous layer, a first conductivity-type layer, and a second conductivity-type layer; and a step for introducing hydrogen into the intrinsic amorphous layer, the first conductivity-type layer, and the second conductivity-type layer.