687 citations · 875 across the 4 of their papers we have counts for
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Observation of forbidden phonons and dark excitons by resonance Raman scattering in few-layer WS
Qing-Hai Tan, Yu-Jia Sun, Xue-Lu Liu +4
The optical properties of the two-dimensional (2D) crystals are dominated by tightly bound electron-hole pairs (excitons) and lattice vibration modes (phonons). The exciton-phonon…
Effects of Lower Symmetry and Dimensionality on Raman Spectra in 2D WSe2
Xin Luo, Yanyuan Zhao, Jun Zhang +4
We report the observation and interpretation of new Raman peaks in few-layer tungsten diselenide (WSe2), induced by the reduction of symmetry going from 3D to 2D. In general, Raman…
Anomalous Frequency Trends in MoS2 Thin Films Attributed to Surface Effects
Xin Luo, Yanyuan Zhao, Jun Zhang +2
The layered dichalcogenide MoS2 has many unique physical properties in low dimensions. Recent experimental Raman spectroscopies report an anomalous blue shift of the in-plane E2g1…
Interlayer breathing and shear modes in few-trilayer MoS2 and WSe2
Yanyuan Zhao, Xin Luo, Hai Li +8
Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have recently attracted tremendous interest as potential valleytronic and nano-electronic materials, in additio…