Nano-confinement between a capping layer composed of graphene or hexagonal boron nitride and a substrate directs the growth kinetics during chemical vapour deposition, which enables the atomically precise synthesis of 2D transition metal dichalcogenide monolayers, Janus monolayers and van der Waals heterostructures with ultraclean interfaces.
- Ce Bian
- Yifan Zhao
- Hong-Jun Gao
