Exciton-Driven Two-Step Charge Transfer in MoS2-WSe2 Heterostructures Revealed by Valley-Resolved Broadband Pump-Probe Spectroscopy

Key Points

• This research aims to explore the role of excitons in the charge transfer processes within TMD heterostructures.
• Utilized valley-resolved broadband pump-probe spectroscopy to analyze charge dynamics
• Focused on MoS2-WSe2 heterostructures
• Investigated interlayer charge transfer mechanisms
• Identified strong excitonic effects influencing charge transfer rates
• Demonstrated distinct charge dynamics based on valley contributions
• Revealed insights into the efficiency of exciton interactions in heterostructures