Tailoring the Interface with a Multifunctional Ligand for Highly Efficient and Stable FAPbI₃ Perovskite Solar Cells and Modules.

ABSTRACT: Perovskite solar cells (PeSCs) using FAPbI₃ perovskite films often exhibit unfavorable phase transitions and defect-induced nonradiative interfacial recombination, resulting in considerable energy loss and impairing the performance of PeSCs in terms of efficiency, stability, and hysteresis. In this work, a facile interface engineering strategy to control the surface structure and energy-level alignment of perovskite films by tailoring the interface between the FAPbI₃ film and hole-transporting layer using 4-hydroxypicolinic acid (4HPA) is reported. According to density functional theory studies, 4HPA has prominent electron delocalization distribution properties that enable it to anchor to the perovskite film surface and facilitate charge transfer at the interface. By

SUBMITTER: Li F 

PROVIDER: S-EPMC10375111 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature