Synthesized 1D arrays of charged molecules on graphene and characterized a new type of supercritical confinement of graphene carriers.
Significance and Impact
The coupling of charged molecular arrays to electrons in graphene exhibits unique behavior that is analogous to how light interacts with galactic star clusters.
- Created charge-tunable, periodic, self-assembled 1D molecular arrays on clean, back-gated graphene FET devices via bottom-up synthesis techniques.
- Scanning tunneling microscopy allowed the graphene electrons to be directly imaged as they interacted with the charged molecular array.
- Graphene carriers far from the molecules are attracted by the supercritical molecular charge distribution, but their fall to the center is frustrated by the subcritical potential of individual molecules.