公开(公告)号：US20140076394A1

公开(公告)日：2014-03-20

申请号：US13857806

申请日：2013-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongbeom NAM ,  Indo CHUNG ,  Ilhyoung JUNG ,  Jinah KIM

IPC: H01L31/0224

CPC classification number: H01L31/022425 ,  H01L31/068 ,  Y02E10/547

Abstract: A solar cell includes a substrate, an emitter region including a lightly doped emitter region having a first sheet resistance and a heavily doped emitter region having a second sheet resistance less than the first sheet resistance, a first dielectric layer positioned on the emitter region, a first electrode including a first finger electrode positioned on the heavily doped emitter region in a first direction and a first bus bar electrode positioned on the lightly doped emitter region in a second direction, and a second electrode positioned on the substrate. The first finger electrode includes a seed layer contacting the heavily doped emitter region and a conductive metal layer formed on the seed layer, and the first bus bar electrode includes electrically conductive metal particles and a thermosetting resin.

Abstract translation: 太阳能电池包括基板，包括具有第一薄层电阻的轻掺杂发射极区域和具有小于第一薄层电阻的第二薄层电阻的重掺杂发射极区域的发射极区域，位于发射极区域上的第一介电层， 第一电极包括位于第一方向上的重掺杂发射极区域上的第一指状电极和位于第二方向上位于轻掺杂发射极区域上的第一汇流条电极以及位于基板上的第二电极。 第一指状电极包括接触重掺杂发射极区域的种子层和形成在种子层上的导电金属层，第一汇流条电极包括导电金属颗粒和热固性树脂。