Magnetic brightening and its dynamics of defect-localized excitons in monolayer WSe2

Quantum light sources, in particular solid-states single-photon emitters have attracted considerable attention due to their crucial roles in the field of quantum information technologies. Recently, defects in two-dimensional monolayer transition metal dichalcogenides, such as tungsten diselenide (WSe 2 ), have been demonstrated to be promising candidates for stable and bright quantum light sources [1,2]. However, the external controllability of single-photon emission has not been fully understood.