Suppressing solvent adducts via coordination competition enables scalable perovskite photovoltaics.

ABSTRACT: Scalable coating methods are indispensable for the commercialization of perovskite photovoltaics. However, fundamental divergences in crystallization dynamics hinder the direct adaptation of spin-coating optimization strategies. Furthermore, the limited understanding of crystallization control under scalable conditions constrains the fabrication of high-quality perovskite films. Herein, we identify the solvent-precursor interaction time (τ_int) as the critical, yet previously overlooked, kinetic parameter governing film quality in scalable processes. We demonstrate the prolonged τ_int inherent to blade coating stabilizes solvent-adduct phases, increases solvent retention, and ultimately degrades film crystallinity. To resolve this, we introduce a dynamic coordination co

SUBMITTER: Jin L 

PROVIDER: S-EPMC12914015 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature