In the past 20 years, we have reached a broad understanding of many light-driven
phenomena in nanoscale systems. The temporal dynamics of the excited states are instead …

MoS2 has drawn great attention as a promising alternative to Pt-based catalysts for the
hydrogen evolution reaction (HER). However, it suffers from sluggish kinetics to drive the …

In single-layer (1L) transition metal dichalcogenides, the reduced Coulomb screening
results in strongly bound excitons which dominate the linear and the nonlinear optical …

The interaction of excitons with lattice vibrations underlies the scattering from bright to dark
excitons as well as the coherent modulation of the exciton energy. Unlike the former …

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 …

The valley pseudospin at the K and K′ high-symmetry points in monolayer transition metal
dichalcogenides (TMDs) has potential as an optically addressable degree of freedom in next …

Vibronic coupling between pigment molecules is believed to prolong coherences in
photosynthetic pigment–protein complexes. Reproducing long-lived coherences using …

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

The concept of optical exciton—a photoexcited bound electron-hole pair within a crystal—is
routinely used to interpret and model a wealth of excited-state phenomena in …

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 …