Molecular confinement for enhanced interfacial contact and performance in inverted perovskite solar cells (opens in new tab)

Self-assembled molecule (SAM) layers have significantly enhanced the efficiency of inverted perovskite solar cells (PSCs). However, SAM aggregation leads to non-uniform interfacial contact, limiting further improvements in efficiency and stability. Here we employ perfluoro-2-propoxypropanoic acid (PFA) to construct a molecular confinement structure on the surface of the NiOx substrate. This confinement structure enables uniform embedding of SAMs within the PFA sub-monolayer and prevents their...