Q
Qinsheng Wang
Researcher at Beijing Institute of Technology
Publications - 32
Citations - 1170
Qinsheng Wang is an academic researcher from Beijing Institute of Technology. The author has contributed to research in topics: Weyl semimetal & Topological insulator. The author has an hindex of 13, co-authored 32 publications receiving 859 citations. Previous affiliations of Qinsheng Wang include Peking University.
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Journal ArticleDOI
Valley Carrier Dynamics in Monolayer Molybdenum Disulfide from Helicity-Resolved Ultrafast Pump–Probe Spectroscopy
TL;DR: In this paper, the valley-related carrier dynamics in monolayer molybdenum disulfide were investigated using helicity-resolved non-degenerate ultrafast pump-probe spectroscopy at the vicinity of the high-symmetry K point under the temperature down to 78 K.
Journal ArticleDOI
Ultrafast Broadband Photodetectors Based on Three-Dimensional Dirac Semimetal Cd 3 AS 2
Jiawei Lai,Qinsheng Wang,Cai-Zhen Li,Shaofeng Ge,J. Li,Wei Lu,Xuefeng Liu,Junchao Ma,Dapeng Yu,Zhi-Min Liao,Dong Sun +10 more
TL;DR: In this work, the realization of an ultrafast broadband Cd3As based photodetector with a high sensitivity, high responsivity and high speed over a broad wavelength range is reported.
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Dynamical Evolution of Anisotropic Response in Black Phosphorus under Ultrafast Photoexcitation
Shaofeng Ge,Chao-Kai Li,Zhiming Zhang,Chenglong Zhang,Yudao Zhang,Jun Qiu,Qinsheng Wang,Junku Liu,Junku Liu,Shuang Jia,Ji Feng,Dong Sun +11 more
TL;DR: It is found that the anisotropy of reflectivity is enhanced in the pump-induced quasi-equilibrium state, suggesting an extraordinary enhancement of the an isotropy in dynamical conductivity in hot carrier dominated regime.
Journal ArticleDOI
Anisotropic Broadband Photoresponse of Layered Type-II Weyl Semimetal MoTe2.
Jiawei Lai,Xin Liu,Junchao Ma,Qinsheng Wang,Qinsheng Wang,Kenan Zhang,Xiao Ren,Yinan Liu,Qiangqiang Gu,Xiao Zhuo,Wei Lu,Yang Wu,Yuan Li,Ji Feng,Shuyun Zhou,Jian-Hao Chen,Dong Sun +16 more
TL;DR: The results suggest this emerging class of materials can be harnessed for broadband angle sensitive, self-powered photodetection with decent responsivities, and the response of the detector is polarization angle sensitive due to the anisotropic response of MoTe2.
Journal ArticleDOI
Topological surface state enhanced photothermoelectric effect in Bi2Se3 nanoribbons.
Yuan Yan,Zhi-Min Liao,Xiaoxing Ke,Gustaaf Van Tendeloo,Qinsheng Wang,Dong Sun,Wei Yao,Shuyun Zhou,Lei Zhang,Han-Chun Wu,Han-Chun Wu,Dapeng Yu +11 more
TL;DR: The photothermoelectric effect in topological insulator Bi2Se3 nanoribbons is studied and is expected to have potential applications in a spin-polarized power source.