Tailoring interface-anchoring molecules for efficient and stable perovskite solar cells.

ABSTRACT: Interfacial dipolar molecules play a crucial role in achieving high-performance perovskite solar cells (PSCs). However, the random distribution at the interface often limits their ability to effectively regulate interfacial energy levels and carrier extraction. Here, we report a bifunctional antisymmetric molecule, N-(1-carboxyethyl)iminodiacetic acid trisodium salt (MGDA·3Na), which enables both directional alignment and stable anchoring on SnO₂ and perovskite interfaces. The methyl side chain in the MGDA^- anion induces intramolecular electronic polarization and dipole reorientation, facilitating selective adsorption on the SnO₂ surface and perovskite buried interface. This significantly improves interface uniformity, enabling efficient passivation of SnO<

SUBMITTER: Yang W 

PROVIDER: S-EPMC12739160 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature