Vertical heterostructures of transition metal dichalcogenides (TMDs) host interlayer excitons
with electrons and holes residing in different layers. With respect to their intralayer …

The coupling of the electron system to lattice vibrations and their time-dependent control and
detection provide unique insight into the nonequilibrium physics of semiconductors. Here …

The question of macroscopic occupation and the spontaneous emergence of coherence for
exciton ensembles has gained renewed attention due to the rise of van der Waals …

Atomically thin two-dimensional (2D) semiconductors are extensively investigated for
optoelectronic applications that require strong light–matter interactions. In view of such …

Charge transfer is vital in determining the optoelectronic properties of atomically thin
materials, yet remains elusive in type I heterostructures. Here, distinct two‐step charge …

Using heterodyne transient grating spectroscopy, we observe a significant enhancement of
exciton diffusion in a monolayer WSe2 stacked on graphene. The diffusion dynamics can be …

The measurement and manipulation of the coherent dynamics of excitonic states constitute a
forefront research challenge in semiconductor optics and quantum-coherence-based …

Monolayer transition-metal dichalcogenides (ML-TMDs) have the potential to unlock novel
photonic and chemical technologies if their optoelectronic properties can be understood and …

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are ideal platforms for
exploring excitonic physics because of the tightly bound excitons. In this work, we observed …

Monolayer transition metal dichalcogenides exhibit valley-dependent excitonic characters
with a large binding energy, acting as the building block for future optoelectronic …