Stepwise-Process-Controlled Ligand Management Strategy for Efficient and Stable Perovskite Quantum Dot Solar Cells.

ABSTRACT: CsPbI₃ perovskite quantum dots (QDs) have attracted much attention in the field of solar cells because of their excellent photovoltaic properties. Conventional modification of long-chain insulating ligands can ensure good dispersion and film-forming stability of QDs, but the limitations of their low defect passivation ability and poor charge transport ability will make them fail to achieve high efficiency in the corresponding solar cell devices. In this study, by introducing "Benzylphosphonic acid" short-chain ligands to the surface of CsPbI₃ QDs, the ligands were re-administered on the surface during the preparation of the CsPbI₃ QDs as well as during the film-forming process. The strong coordination ability of Benzenephosphonic acid can effectively passiv

SUBMITTER: Dai J 

PROVIDER: S-EPMC10708130 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature