Characterize the interplay between strain-induced exciton funneling and defect-mediated emission

Investigate the possible interplay between strain-induced exciton funneling and CH$_\mathrm{S}^{-}$-mediated emission in monolayer MoS$_2$, specifically whether spatially varying strain assists carrier or exciton localization near the defect while the CH$_\mathrm{S}^{-}$ states remain responsible for the optical transition.

Background

The study focuses on the defect-mediated optical transition associated with CHS−_\mathrm{S}^{-} and does not explicitly model emission from strain-localized excitons. The authors distinguish this mechanism from conventional strain-funneled exciton emission, in which a strain-induced potential localizes host excitons.

Because strain may both funnel carriers or excitons toward lower-energy regions and modify the defect transition, the authors identify their possible interplay as an unresolved issue requiring future investigation.

References

Our results therefore agree with the experimental assignment regarding the essential role of the defect states , while the possible interplay between strain-induced exciton funneling and CH$_\mathrm{S}{-}$-mediated emission remains to be investigated in future work.

— Theory of the CH$_\text{S}^-$ Defect in MoS$_2$ Confirming the Origin of the Quantum Emission  (2610.12283 - Cholsuk et al., 8 Oct 2026) in Discussion, paragraph beginning “In addition, whereas optical emission in MoS$_2$ commonly originates…”