Unveiling the additive-assisted oriented growth of perovskite crystallite for high performance light-emitting diodes.

ABSTRACT: Solution-processed metal halide perovskites have been recognized as one of the most promising semiconductors, with applications in light-emitting diodes (LEDs), solar cells and lasers. Various additives have been widely used in perovskite precursor solutions, aiming to improve the formed perovskite film quality through passivating defects and controlling the crystallinity. The additive's role of defect passivation has been intensively investigated, while a deep understanding of how additives influence the crystallization process of perovskites is lacking. Here, we reveal a general additive-assisted crystal formation pathway for FAPbI₃ perovskite with vertical orientation, by tracking the chemical interaction in the precursor solution and crystallographic evolution during the fil

SUBMITTER: Zhu L 

PROVIDER: S-EPMC8382739 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature