公开(公告)号：US09799781B2

公开(公告)日：2017-10-24

申请号：US14536270

申请日：2014-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Jeongbeom Nam ,  Doohwan Yang ,  Eunjoo Lee ,  Ilhyoung Jung

IPC: H01L31/00 ,  H01L31/0224 ,  H01L31/05 ,  H01L31/068 ,  H01L31/056 ,  H01L31/028

CPC classification number: H01L31/022425 ,  H01L31/022441 ,  H01L31/022491 ,  H01L31/028 ,  H01L31/0516 ,  H01L31/056 ,  H01L31/0682 ,  Y02E10/52 ,  Y02E10/547

Abstract: A solar cell is discussed. The solar cell according to an embodiment includes a photoelectric conversion unit including a first conductive type region and a second conductive type region formed on the same side of the photoelectric conversion unit; and an electrode formed on the photoelectric conversion unit and including an adhesive layer formed on the photoelectric conversion unit and an electrode layer formed on the adhesive layer, wherein the adhesive layer has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the photoelectric conversion unit and is less than a coefficient of thermal expansion of the electrode layer.