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Science & ResearchAug 31, 2026

Dark exciton signatures in the infrared transient absorption of MoS$_2$ monolayer

Dark excitons play a central role in the nonequilibrium dynamics of two-dimensional semiconductors, but remain difficult to characterize.

Dark excitons play a central role in the nonequilibrium dynamics of two-dimensional semiconductors, but remain difficult to characterize. In this work we show that transient-absorption experiments, with probe pulses tuned in the exciton-exciton transitions energy range…

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