Electrostatically Enhanced Buried Interface Binding of Self-Assembled Monolayers for Efficient And Stable Inverted Perovskite Solar Cells.

ABSTRACT: Inverted p-i-n structure perovskite solar cells (PSCs) have outperformed traditional n-i-p PSCs in recent years. A key advancement is the use of self-assembled monolayers (SAMs) as hole transport layers. One class of widely used SAMs is carbazole-based phosphonic acids. However, it is found that these SAMs lack strong binding with transparent conducting oxides (TCO) and perovskite. The weak binding strength results in suboptimal interfacial adhesion of the buried interface, which limits the device's stability. Here, interfacial binding is enhanced by increasing the dipole moment that creates a strong interfacial electric field that enhances electrostatic interactions at the TCO/perovskite interface, while incorporating tailored functional groups in SAMs to improve chemical anchoring to TCO

SUBMITTER: Huang C 

PROVIDER: S-EPMC12574631 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature