[16p-C41-1~12] New direction of perovskite solar cells

2:30 PM - 3:00 PM JST(5:30 AM - 6:00 AM UTC)English Presentation

[16p-C41-3] Molecular engineering of interfaces for efficient and stable perovskite solar cells

〇Somin Park¹ (1.National Univ. of Singapore)

Keywords:

Interface engineering

Interfacial two- and three-dimensional heterostructures that incorporate ammonium ligand intercalation have enabled rapid progress toward the goal of uniting performance with stability in perovskite solar cells. However, as the field continues to seek ever-higher durability, additional tools that avoid progressive ligand intercalation are needed to minimize degradation at high temperatures. In this talk, I will present how the molecular structure, varying both the tail groups and alkyl chain lengths, influences the surface interactions and its energetics. I will focus on developing a series of anilinium derivatives that exhibit minimal reactivity with perovskites, leading to improved stability at the interface. Additionally, I will present our physical insights into the co-adsorbent self-assembled monolayers that reduce interfacial recombination and enhance electronic structures.