Multifunctional Polymer Matrix at the Buried Interface Boosting Stability and Efficiency in Perovskite Solar Cells.

ABSTRACT: To drive further advancements, increasing attention has been directed toward optimizing the buried interface in perovskite solar cells, which not only influences carrier accumulation and recombination but also plays a decisive role in the overall quality of deposited perovskite thin films. In this work, sodium hyaluronate is employed to disperse the SnO₂ nanoparticles and facilitate the formation of uniform and compact SnO₂ films. The polymer matrix endows a homogeneously dispersed SnO₂ precursor with long-term stability via steric effect and electrostatic repulsion. This modification effectively eliminates the oxygen vacancies and dangling hydroxyl bonds at the interface. The buried interface is modulated and, in turn, oriented perovskite grains, relaxed r

SUBMITTER: Luo H 

PROVIDER: S-EPMC12632439 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature