Trion formation dynamics in monolayer transition metal dichalcogenides
Trion formation dynamics in monolayer transition metal dichalcogenides
We report charged exciton (trion) formation dynamics in doped monolayer transition metal dichalcogenides, specifically molybdenum diselenide $(\mathrm{MoS}{\mathrm{e}}_{2})$, using resonant two-color pump-probe spectroscopy. When resonantly pumping the exciton transition, trions are generated on a picosecond time scale through exciton-electron interaction. As the pump energy is tuned from the high energy to …