Yttrium oxide engineered substrate enables improved durability for perovskite solar cells.

ABSTRACT: Transparent conductive oxides (TCOs)-foundation of perovskite solar cells (PSCs)-have long been assumed to be stable, and thus their impact on device longevity is frequently overlooked. Herein, we unveil that fluorine doped tin oxide (FTO) suffers from instability under operational stress, exacerbating PSC stability issue. To address this issue, we propose a universal interface engineering strategy employing a scalable thermal evaporation followed by natural oxidation to form an atomically bonded yttrium oxide (Y₂O₃) to strengthen structural stability of FTO. Evaporated yttrium effectively anchors a portion of lattice oxygen within FTO, preventing elemental dissociation. Moreover, the formed Y₂O₃ featured conformal deposition on rough FTO increas

SUBMITTER: Wang H 

PROVIDER: S-EPMC12569068 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature