Polystyrene enhanced crystallization of perovskites towards high performance solar cells.

ABSTRACT: Perovskite solar cells have attracted significant attention due to their high efficiency and low cost. In the research on methylammonium lead-iodide (CH₃NH₃PbI₃), a lot of work has been devoted to optimize the film morphology and crystallinity resulting in an enhancement of the power conversion efficiency (PCE). A good surface coverage and uniform perovskite films are highly desirable along with a smooth and pinhole-free contact between the hole and electron extraction layers. Overall, this affects the charge transport and collection, and reduces charge recombination. Herein, we demonstrate a facile route to control perovskite crystallization by inserting an optimal amount of insulating polystyrene in the perovskite precursor solutions. The incorporation of

SUBMITTER: Kim HP 

PROVIDER: S-EPMC9473274 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature