公开(公告)号：EP4322235A1

公开(公告)日：2024-02-14

申请号：EP22784899.1

申请日：2022-04-05

申请人： Hanwha Solutions Corporation

发明人： JUNG, Jin Young ,  YANG, Woon Seok ,  YI, Min Ji ,  CHOI, In Taek

IPC分类号： H01L51/42 ,  H01L51/44 ,  H01L27/30

摘要： The present invention relates to a perovskite solar cell and a tandem solar cell comprising the same, characterized in that the perovskite solar cell comprises: a substrate; a transparent electrode; a hole transport layer; a perovskite light absorption layer; an electron transport layer; and a metal electrode, wherein the electron transport layer is a graded thin film in which a chemical binding state of elements constituting the electron transport layer gradually changes from the lower portion thereof toward the upper portion thereof.