Abstract:Atomic defects in two-dimensional (2D) semiconductors are promising single exciton traps for achieving quantum emission. However, excessively high density of defects often makes it impractical to optically address the quantum nature of such quasi-particles, preventing strategic exciton engineering. Here, we report a versatile strategy for dilute acceptor impurity doping of monolayer WS2, which enables the study of isolated bound excitons. We observe two distinct types of acceptor-bound excitons: one of them is… Show more
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