公开(公告)号：US11121269B2

公开(公告)日：2021-09-14

申请号：US16430018

申请日：2019-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Jaewoo Choi ,  Chungyi Kim ,  Joohyun Koh

IPC: H01L31/044 ,  H01L31/0224 ,  H01L31/0216 ,  H01L31/18

Abstract: A solar cell includes a semiconductor substrate; a conductive region on or at the semiconductor substrate; an electrode electrically connected to the conductive region; and a silicon oxynitride layer on a light incident surface of the semiconductor substrate, wherein the silicon oxynitride layer comprises a first phase region having a first oxygen content and a first nitrogen content; a second phase region having a second oxygen content higher than the first oxygen content and a second nitrogen content lower than the first nitrogen content; and a third phase region having a third oxygen content lower than the second oxygen content and a third nitrogen content lower than the second nitrogen content.

公开(公告)号：US10367104B2

公开(公告)日：2019-07-30

申请号：US15858798

申请日：2017-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Jaewoo Choi ,  Chungyi Kim ,  Joohyun Koh

IPC: H01L31/044 ,  H01L31/0224 ,  H01L31/0216 ,  H01L31/18

Abstract: Disclosed is a solar cell including: a semiconductor substrate; a conductive region on or at the semiconductor substrate; an electrode electrically connected to the conductive region; and a passivation layer on a light incident surface of the semiconductor substrate. The passivation layer includes a first layer in contact with the light incident surface of the semiconductor substrate and formed of silicon oxynitride for ultraviolet stability. The first layer includes a plurality of phases of the silicon oxynitride, and the plurality of phases are formed of the silicon oxynitride having different compositions.