Ultrafast transient s-SNOM nanoscopic measurement of charge transfer between Ruthenium complex and MoS2 monolayer

Abstract

We studied exciton diffusion and charge transfer between a metal-organic complex and a MoS₂ monolayer using transient s-SNOM nanoscopy. Measuring vibrational ground state bleach dynamics, we found an exciton diffusion rate of ~8×10^-4 cm²/s. Nanoscale resolution avoids spatial averaging errors, offering insights for optimizing excitonic processes in light-harvesting devices.