公开(公告)号：US20230078624A1

公开(公告)日：2023-03-16

申请号：US17959095

申请日：2022-10-03

Applicant: Shangrao Jinko solar Technology Development Co., LTD

Inventor： Wonjae CHANG ,  Sungjin KIM ,  Juhwa CHEONG ,  Junyong AHN

IPC: H01L31/0745 ,  H01L31/0224 ,  H01L31/18 ,  H01L31/0288 ,  H01L31/0216 ,  H01L31/0236 ,  H01L31/0368

Abstract: Disclosed is a solar cell including a semiconductor substrate, and a dopant layer disposed over one surface of the semiconductor substrate and having a crystalline structure different from that of the semiconductor substrate, the dopant layer including a dopant. The dopant layer includes a plurality of semiconductor layers stacked one above another in a thickness direction thereof, and an interface layer interposed therebetween. The interface layer is an oxide layer having a higher concentration of oxygen than that in each of the plurality of semiconductor layers.