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Intrinsic Transport Properties of Electrons and Holes in Monolayer Transition Metal Dichalcogenides
Zhenghe Jin, Xiaodong Li, Jeffrey Thomas Mullen +1
Intrinsic electron- and hole-phonon interactions are investigated in monolayer transition metal dichalcogenides MX (M=Mo,W; X=S,Se) based on a density functional theory formali…
Temperature Dependent Valley Relaxation Dynamics in Single Layer WS2 Measured Using Ultrafast Spectroscopy
Cong Mai, Yuriy G. Semenov, Andrew Barrette +5
We measured the lifetime of optically created valley polarization in single layer WS2 using transient absorption spectroscopy. The electron valley relaxation is very short (< 1ps).…
Efficient Interlayer Relaxation and Transition of Excitons in Epitaxial and Non-epitaxial MoS2/WS2 Heterostructures
Yifei Yu, Shi Hu, Liqin Su +8
Semiconductor heterostructures provide a powerful platform for the engineering of excitons. Here we report the excitonic properties of two-dimensional (2D) heterostructures that co…