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cond-mat.mes-hall2018★ 156 cited
Observation of exciton redshift-blueshift crossover in monolayer WS2
Edbert J. Sie, Alexander Steinhoff, Christopher Gies +10
We report a rare atom-like interaction between excitons in monolayer WS2, measured using ultrafast absorption spectroscopy. At increasing excitation density, the exciton resonance…
cond-mat.mes-hall2018★ 47 cited
Excitation-induced transition to indirect band gaps in atomically thin transition metal dichalcogenide semiconductors
D. Erben, A. Steinhoff, G. Schönhoff +3
Monolayers of transition metal dichalcogenides (TMDCs) exhibit an exceptionally strong Coulomb interaction between charge carriers due to the two-dimensional carrier confinement in…