What question did this study set out to answer?

This research aims to explore the role of excitons in the charge transfer processes within TMD heterostructures.

April 1, 2026Physical Chemistry Chemical Physics0 citations

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

ZHZi-Fan HuJilin University TWTing-Ting WangJilin University YZYupeng ZhangJilin University

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

Abstract

The strong excitonic effects in transition metal dichalcogenide (TMD) heterostructures (HSs) play a critical role in interlayer charge transfer. Using valley-resolved broadband pump-probe spectroscopy, we investigate charge dynamics in MoS2-WSe2...

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