Figure 4
From: Exciton-dominated Dielectric Function of Atomically Thin MoS2 Films
Geometric confinement of excitons in MoS2 films.
(a) Comparison of the size of the exciton in bulk MoS2 with the thickness of MoS2 films. The regime where the film is thinner than the exciton size is categorized as strong confinement. (b–e) Schematic illustration of the size of excitons in the films with different layer numbers.
