Highly oriented MAPbI₃ crystals for efficient hole-conductor-free printable mesoscopic perovskite solar cells.

ABSTRACT: Highly crystalline perovskite films with large grains and few grain boundaries are conducive for efficient and stable perovskite solar cells. Current methods for preparing perovskite films are mostly based on a fast crystallization process, with rapid nucleation and insufficient growth. In this study, MAPbI₃ perovskite with inhibited nucleation and promoted growth in the TiO₂/ZrO₂/carbon triple mesoscopic scaffold was crystallized by modulating the precursor and the crystallization process. N-methylformamide showed high solubility for both methylammonium iodide and PbI₂ and hampered the formation of large colloids in the MAPbI₃ precursor solution. Furthermore, methylammonium chloride was added to reduce large colloids, which are a poss

SUBMITTER: Liu S 

PROVIDER: S-EPMC11197800 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature