Liquids Confined in Atomic-Scale 2D Channels

I shall provide an overview of our research on atomic-scale channels fabricated by der Waals assembly of 2D crystals. These ultimately narrow structures can be viewed as if an individual atomic plane were extracted from a bulk crystal leaving behind a 2D empty space, essentially an angstrom-size slit connecting two edge dislocations. Water and ion transport has been studied using such 2D channels down to one atom in height, revealing interesting and sometimes completely unexpected behavior.