Jun Chen et al.
Small (Weinheim an der Bergstrasse, Germany), 15(42), e1902590-e1902590 (2019-08-27)
It is shown that tilt grain boundaries (GBs) in bilayer 2D crystals of the transition metal dichalcogenide WS2 can be atomically sharp, where top and bottom layer GBs are located within sub-nanometer distances of each other. This expands the current