Universal in situ oxide-based ABX₃-structured seeds for templating halide perovskite growth in All-perovskite tandems.

ABSTRACT: Precise control over halide perovskite crystallization is pivotal for realizing efficient solar cells. Here, we introduce a strategy utilizing in-situ-formed oxide-based ABX₃-structured seeds to regulate perovskite crystallization and growth. Introducing potassium stannate into perovskite precursors triggers a spontaneous reaction with lead iodide, producing potassium iodide and lead stannate. Potassium iodide effectively passivates defects, while PbSnO₃ (ABX₃-structured), exhibiting a 98% lattice match, acts as a template and seed. This approach facilitates pre-nucleation cluster formation, preferential grain orientation, and the elimination of intermediate-phase processes in perovskite films. Incorporating potassium stannate into both the perovskite precu

SUBMITTER: Chen W 

PROVIDER: S-EPMC11846837 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature