Two-dimensional molybdenum disulfide (MoS2) is a semiconductor that could be used to
build scaled transistors and other advanced electronic and optoelectronic devices. However …

The emerging field of valleytronics has boosted intensive interests in investigating and
controlling valley polarized light emission of monolayer transition metal dichalcogenides (1L …

Impurity do** is a viable route toward achieving desired subgap optical response in
semiconductors. In strongly excitonic two-dimensional (2D) semiconductors such as …

Photon upconversion is an anti-Stokes process in which an absorption of a photon leads to
a reemission of a photon at an energy higher than the excitation energy. The upconversion …

Two-dimensional (2D) semiconductors with point defects are predicted to host a variety of
bound exciton complexes analogous to trions and biexcitons due to strong many-body …

Defect engineering of atomically thin semiconducting crystals is an attractive route to
develo** single‐photon sources and valleytronic devices. For these applications, defects …

Interactions among a collection of particles generate many-body effects in solids that result
in striking modifications of material properties. The heavy carrier mass that yields strong …

Mixed-dimensional van der Waals (vdW) heterostructures based on two-dimensional (2D)
materials exhibit immense potential in infrared optoelectronic applications. However, the …

Temperature‐and laser power‐dependent photoluminescence (PL) properties of the
asymmetric defect‐bound exciton band XD in defective WS2 monolayers, grown by …