公开(公告)号：US10566488B2

公开(公告)日：2020-02-18

申请号：US14811475

申请日：2015-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Seunghwan Shim ,  Ilhyoung Jung ,  Indo Chung ,  Eunhye Youn

IPC: H01L31/0224 ,  H01L31/18 ,  H01L31/077 ,  H01L31/028 ,  H01L31/0368 ,  H01L31/0352 ,  H01L31/0747

Abstract: A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a semiconductor substrate doped with impurities of a first conductive type, a front surface field region disposed at a front surface of the substrate and doped with impurities of the first conductive type at a concentration higher than those of the substrate, a tunnel layer disposed on a back surface of the substrate and formed of a dielectric material, an emitter region disposed at a first portion of a back surface of the tunnel layer and doped with impurities of a second conductive type opposite the first conductive type, and a back surface field region disposed at a second portion of the back surface of the tunnel layer and doped with impurities of the first conductive type at a concentration higher than those of the substrate.

公开(公告)号：US10141457B2

公开(公告)日：2018-11-27

申请号：US13798355

申请日：2013-03-13

Applicant: LG Electronics Inc.

Inventor： Seunghwan Shim ,  Kisu Kim ,  Eunhye Youn ,  Yuju Hwang ,  Younghyun Lee ,  Sangwook Park

IPC: H01L31/00 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/068 ,  H01L31/0745 ,  H01L31/0747

Abstract: A solar cell includes a semiconductor substrate of a first conductive type, an emitter region having a second conductive type different from the first conductive type and positioned at a first surface of the semiconductor substrate, a semiconductor region positioned directly on a second surface opposite the first surface of the semiconductor substrate, forming a charge accumulation layer on the second surface of the semiconductor substrate, and containing impurities of the first conductive type, a first electrode positioned on the first surface of the semiconductor substrate and coupled to the emitter region, and a second electrode positioned on the second surface of the semiconductor substrate and coupled to the semiconductor substrate.

公开(公告)号：US09929297B2

公开(公告)日：2018-03-27

申请号：US14151478

申请日：2014-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunhye Youn ,  Sangwook Park ,  Seunghwan Shim ,  Yujin Lee

IPC: H01L31/065 ,  H01L31/068 ,  H01L31/0352 ,  H01L31/0368 ,  H01L31/0376 ,  H01L31/18

CPC classification number: H01L31/065 ,  H01L31/035272 ,  H01L31/03685 ,  H01L31/03762 ,  H01L31/068 ,  H01L31/1824 ,  Y02E10/547

Abstract: A solar cell and a method for manufacturing the same are discussed. The solar cell includes a substrate containing impurities of a first conductive type, an emitter region which is positioned at a front surface of the substrate and contains impurities of a second conductive type opposite the first conductive type, a back passivation layer which is positioned on a back surface of the substrate and has openings, a back surface field region containing impurities of the first conductive type, a first electrode connected to the emitter region, and a second electrode connected to the back surface field region. The back surface field region includes a first back surface field region positioned on the back passivation layer and a second back surface field region, which is positioned at the back surface of the substrate exposed by the openings of the back passivation layer.