Two-dimensional group-VI transition metal dichalcogenide semiconductors, such as MoS2,
WSe2, and others, exhibit strong light-matter coupling and possess direct band gaps in the …

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

Understanding and controlling disorder is key to nanotechnology and materials science.
Traditionally, disorder is attributed to local fluctuations of inherent material properties such …

The strong light-matter interaction and the valley selective optical selection rules make
monolayer (ML) MoS 2 an exciting 2D material for fundamental physics and optoelectronics …

Chirality reveals symmetry breaking of the fundamental interaction of elementary particles. In
condensed matter, for example, the chirality of electrons governs many unconventional …

Valley degree of freedom in the first Brillouin zone of Bloch electrons offers an innovative
approach to information storage and quantum computation. Broken inversion symmetry …

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

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

Charged excitons, or X±trions, in monolayer transition-metal dichalcogenides have binding
energies of several tens of meV. Together with the neutral exciton X 0 they dominate the …

We report 65 T magnetoabsorption spectroscopy of exciton Rydberg states in the archetypal
monolayer semiconductor WSe 2. The strongly field-dependent and distinct energy shifts of …