Self-Regulated Bilateral Anchoring Enables Efficient Charge Transport Pathways for High-Performance Rigid and Flexible Perovskite Solar Cells.

ABSTRACT: Interface modification has been demonstrated as an effective means to enhance the performance of perovskite solar cells. However, the effect depends on the anchoring mode and strength of the interfacial molecules, which determines whether long-term robust interface for carrier viaduct can be achieved under operational light illumination. Herein, we select squaric acid (SA) as the interfacial molecule between the perovskite and SnO₂ layer and propose a self-regulated bilateral anchoring strategy. The unique four-membered ring conjugated structure and dicarboxylic acid groups facilitate stable hydrogen bonds and coordination bonds at both SnO₂/SA and SA/PbI₂ interfaces. The self-transforming property of SA enables the dynamic bilateral anchoring at the buried

SUBMITTER: Zheng H 

PROVIDER: S-EPMC12259523 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature