Photo-Induced Bandgap Renormalization Governs the Ultrafast Response of Single-Layer MoS<sub>2</sub>
Photo-Induced Bandgap Renormalization Governs the Ultrafast Response of Single-Layer MoS<sub>2</sub>
Transition metal dichalcogenides (TMDs) are emerging as promising two-dimensional (2d) semiconductors for optoelectronic and flexible devices. However, a microscopic explanation of their photophysics -- of pivotal importance for the understanding and optimization of device operation -- is still lacking. Here we use femtosecond transient absorption spectroscopy, with pump pulse tunability …