A self-assembled monolayer via rapid and scalable soak coating for perovskite solar cells (opens in new tab)

Self-assembled monolayers serve as hole-selective contacts in perovskite solar cells, but their scalable fabrication remains challenging. Here we report a rapid (≤5 min) soak-coating strategy for self-assembled monolayer fabrication, enabled by molecular design and solvent engineering. The unsymmetric self-assembled monolayer material (4-(10-methoxy-7H-benzo[c]carbazol-7-yl)phenyl)phosphonic acid was rationally designed with dual-functional molecular segments to inhibit molecular aggregation ...