Atomically thin materials such as graphene and monolayer transition metal dichalcogenides
(TMDs) exhibit remarkable physical properties resulting from their reduced dimensionality …

Abstract Two-dimensional (2D) transition metal dichalcogenide (TMDC) materials, such as
MoS 2, WS 2, MoSe 2, and WSe 2, have received extensive attention in the past decade due …

Resolving momentum degrees of freedom of excitons, which are electron-hole pairs bound
by the Coulomb attraction in a photoexcited semiconductor, has remained an elusive goal …

Transition metal dichalcogenides in the class MX 2 (M= Mo, W; X= S, Se) have been
identified as direct-gap semiconductors in the monolayer limit. Here, we examine light …

Atomically thin transition metal dichalcogenides are direct-gap semiconductors with strong
light–matter and Coulomb interactions. The latter accounts for tightly bound excitons, which …

We have investigated the exciton dynamics in transition metal dichalcogenide monolayers
using time-resolved photoluminescence experiments performed with optimized time …

The optical selection rules for interband transitions in WSe 2, WS 2, and MoSe 2 transition
metal dichalcogenide monolayers are investigated by polarization-resolved …

The optical properties of transition metal dichalcogenide monolayers are widely dominated
by excitons, Coulomb-bound electron–hole pairs. These quasi-particles exhibit giant …

Monolayers of transition-metal dichalcogenides feature exceptional optical properties that
are dominated by tightly bound electron–hole pairs, called excitons. Creating van der Waals …

We directly monitor exciton propagation in freestanding and SiO 2-supported WS 2
monolayers through spatially and time-resolved microphotoluminescence under ambient …