Atomic electrostatic maps of 1D channels in 2D semiconductors using 4D scanning transmission electron microscopy

Imaging electrostatic field around individual atoms or defective areas in monolayer 2D materials is crucial to understand their structural coordination. Here, the authors report local changes in specific atomic bonds and provide in-depth structural information of complex defective monolayer MoS2 and WS2 systems by 4D STEM.