Multifunctional SnO₂/Perovskite Interface Engineering for Efficient Perovskite Solar Cells.

ABSTRACT: Perovskite solar cells (PSCs) have shown significant advancements and commercial potential; however, their efficiency is often limited by defects in the bulk material and surface. Stability issues, such as ion migration and degradation of perovskite materials, further exacerbate this challenge. In this study, a strategy using aluminum chloride is introduced to eliminate hydroxyl groups and potassium ions from the tin dioxide (SnO₂) surface, effectively reducing deprotonation of perovskite. This process also forms an ultra-thin aluminum oxide layer at the SnO₂/perovskite interface, functioning as a passivation layer. This modification decreases leakage current and charge carrier recombination, lowering the energy barrier for electron transport, resulting in enhanced op

SUBMITTER: Huang K 

PROVIDER: S-EPMC12697791 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature