公开(公告)号：US11373813B2

公开(公告)日：2022-06-28

申请号：US16011387

申请日：2018-06-18

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Jang Won Seo ,  Nam Joong Jeon ,  Tae Youl Yang ,  Jun Hong Noh ,  Eui Hyuk Jung

IPC: H01G9/20 ,  H01L51/42 ,  H01L51/00

Abstract: Provided is a perovskite solar cell, and more particularly, a perovskite solar cell including an organometal halide layer having a perovskite structure; and a crystalline material layer stacked while forming an interface with the organometal halide layer, wherein a crystalline material of the crystalline material layer is a crystalline halide having a crystal structure different from the perovskite structure, and the crystalline halide has a band gap energy higher than a band gap energy of an organometal halide of the organometal halide layer, and has a valence band maximum energy level lower than a valence band maximum energy level of the organometal halide.