公开(公告)号：US20240414928A1

公开(公告)日：2024-12-12

申请号：US18437231

申请日：2024-02-08

Applicant: Gwangju Institute Of Science And Technology

Inventor： Kwang Hee LEE ,  Ju Hyeon KIM

IPC: H10K30/50 ,  H10K30/86 ,  H10K85/50

Abstract: A perovskite photoactive composite layer, a preparation method thereof, and a perovskite solar cell comprising the same are provided. The perovskite photoactive composite layer can induce smooth charge transport when applied to a solar cell by means of a two-dimensional perovskite photoactive layer grown by recrystallization in the vertical direction, and can passivate surface defects in two-dimensional perovskites and prevent the release of halogen atoms through effective passivation by means of a passivation layer consisting of an organic monomolecular compound containing zwitterions, thereby improving the photostability of the solar cell.

公开(公告)号：US20240124438A1

公开(公告)日：2024-04-18

申请号：US18239728

申请日：2023-08-29

Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kwang Hee LEE ,  Hee Joo KIM ,  Yong Ryun KIM ,  Ju Hyeon KIM

IPC: C07D471/04 ,  H10K30/40

CPC classification number: C07D471/04 ,  H10K30/40

Abstract: Provided are a phenanthroline-based compound, a method of preparing the same, and a perovskite solar cell including the same. The phenanthroline-based compound may be formed as a uniform layer even by a solution process due to its low average surface roughness (root mean square, RMS) and excellent processability. When a layer having the phenanthroline-based compound is provided as a polymer functional layer of the perovskite solar cell, the ionic defects on the surface between the perovskite and a metal oxide, may be passivated and charge transfer may be facilitated so that the energy efficiency and photostability of the solar cell are improved.