4 papers
Unveiling Ultrafast Spin-Valley Dynamics and Phonon-Mediated Charge Transfer in MoSe/WSe Heterostructures
Julian Wagner, Robin Bernhardt, Lukas Rieland +7
We use helicity-resolved ultrafast transient absorption spectroscopy to study spin-valley polarization dynamics in a vertically stacked MoSe/WSe heterostructure. The ex…
Ultrafast Optical Control of Exciton Diffusion in WSe/Graphene Heterostructures Revealed by Heterodyne Transient Grating Spectroscopy
Lukas Rieland, Julian Wagner, Robin Bernhardt +8
Using heterodyne transient grating spectroscopy, we observe a significant enhancement of exciton diffusion within a monolayer WSe stacked on top of graphene. We further demonst…
Unraveling the Excitonic Transition and Associated Dynamics in Confined Long Linear Carbon-chains with Time-Resolved Resonance Raman Scattering
Jingyi Zhu, Robin Bernhardt, Weili Cui +9
Long linear carbon-chains have been attracting intense interest arising from the remarkable properties predicted and their potential applications in future nanotechnology. Here we…
Excitonic Transport and Intervalley Scattering in Exfoliated MoSe2 Monolayer Revealed by Four-Wave-Mixing Transient Grating Spectroscopy
Henning Kuhn, Julian Wagner, Shuangping Han +5
Exciton intervalley scattering, annihilation and relaxation dynamics, and diffusive transport in a monolayer transition metal dichalcogenides are central to the functionality of de…