240 citations · 590 across the 4 of their papers we have counts for
4 papers
On the quantum spin Hall gap of monolayer 1T'-WTe2
Feipeng Zheng, Chaoyi Cai, Shaofeng Ge +12
Quantum spin Hall (QSH) materials are two-dimensional systems exhibiting insulating bulk and helical edge states simultaneously. A QSH insulator processes topologically non-trivial…
Dynamical Evolution of Anisotropic Response in Black Phosphorus under Ultrafast Photoexcitation
Shaofeng Ge, Chaokai Li, Zhimin Zhang +8
Black phosphorus has recently emerged as a promising material for high performance electronic and optoelectronic device for its high mobility, tunable mid-infrared bandgap and anis…
Ultrafast Terahertz Probe of Transient Evolution of Charged and Neutral Phase of Photoexcited Electron-hole Gas in Monolayer Semiconductor
Xuefeng Liu, Qingqing Ji, Zhihan Gao +5
We investigate the dynamical formation of excitons from photoexcited electron-hole plasma and its subsequent decay dynamics in monolayer MoS2 grown by chemical vapor deposition usi…
Valley Carrier Dynamics in Monolayer Molybdenum Disulphide from Helicity Resolved Ultrafast Pump-probe Spectroscopy
Qinsheng Wang, Shaofeng Ge, Xiao Li +4
We investigate the valley related carrier dynamics in monolayer MoS2 using helicity resolved non-degenerate ultrafast pump-probe spectroscopy at the vicinity of the high-symmetry K…