205 citations · 205 across the 1 of their papers we have counts for
3 papers
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…
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…
Excitons versus electron-hole plasma in monolayer transition metal dichalcogenide semiconductors
Alexander Steinhoff, Matthias Florian, Malte Rösner +3
When electron-hole pairs are excited in a semiconductor, it is a priori not clear if they form a fermionic plasma of unbound particles or a bosonic exciton gas. Usually, the excito…