Molecular‐Scale Tracking of the Self‐Healing of Polycrystalline Monolayers at the Solid–Liquid Interface

Coarsening of 2D polycrystals of rod-like oligomers self-assembled at the solid–liquid interface can be visualized using scanning tunneling microscopy with sub-molecular resolution, providing insight into the thermodynamics and kinetics governing this 2D Ostwald- ripening phenomenon.