Observation of distinct moiré superlattice exciton states in WSe
2/WS2 heterostructures using optical spectroscopy.
Significance and Impact
Moiré exciton bands provide an promising platform to realize novel excited states of matter.
- Observed multiple emergent peaks around the original WSe2 exciton resonance with distinct doping dependences in aligned WSe2/WS2 heterostructures.
- The experimental phenomena can be explained using a model where the moiré potential is much stronger than the exciton kinetic energy and creates flat exciton bands.