M. Peeters, Anomalous Raman Spectra and Thickness-Dependent Electronic Properties of WSe2, Phys. Rev. B 87 (2013) 165409.H. Sahin, S. Tongay, S. Horzum, W. Fan, J. Zhou, J. Li, J. Wu, F.M. Peeters, Anomalous Raman spectra and thickness-dependent electronic pr...
Effects of Lower Symmetry and Dimensionality on Raman Spectra in Two-Dimensional WSe2. Phys. Rev. B 2013, 88, 195313-195320.Luo, X.; Zhao, Y.; Zhang, J.; Toh, M.; Kloc, C.; Xiong, Q.; Quek, S. Y. Effects of Lower Symmetry And Dimensionality on Raman Spectra in 2D WSe2. ...
Raman spectroscopy is a powerful tool to study the structural properties of graphene and 2-dimensional materials and is commonly used to determine the number of layers14–16. For this pur- pose, it is important to understand the Raman spectra of bulk materials first, in order to make correct...
The observation of Davydov splitting of phonon modes in few-layer TMD films, which arises from interlayer interactions, is also facilitated by resonant excitation of RS spectra21,22. It has been reported for all semiconducting few-layer TMD materials: MoS223, MoSe224, WS225,26, WSe227 and ...
Ultra-fast Raman imaging of a WSe2 flake. A: white-light image. B: Raman image consisting of 10,000 spectra acquired in about 2 minutes. C: smoothed version of B. D: Raman image consisting of 102,400 spectra acquired in about 17 minutes. E: photoluminescene image with visible grain ...
Effects of ... Xin,Luo,Yanyuan,... - 《Physical Review B》 被引量: 92发表: 2013年 Effects of lower symmetry and dimensionality on Raman spectra in two-dimensionalWSe_2 Photoluminescence Emission and Raman Response of Monolayer MoS2, MoSe2, and WSe2. Opt. Express 2013, 21, 4908-4916.X...
(b) Raman spectra of monolayer and intrinsic bilayer WSe2. From the symmetry point of view, 2H-phase bulk, bilayer, and monolayer WSe2 belong to the D6h, D3d, and D3h point groups, respectively [49]. The number of symmetry elements is reduced from 24 to 12 when the material is ...
(b) Optical Raman active vibrational modes of bulk MoS22. 𝐸1𝑔E1g and 𝐸12𝑔E2g1 correspond to in-plane vibrations and are doubly degenerate at ΓΓ. 𝐴1𝑔A1g corresponds to out-of-plane vibrations of S atoms. (c) Evolution of Raman spectra for increasing number of MoS22 ...
Raman image of tungsten diselenide (WSe2) recorded at 120K. Areas with one (green), two (blue) and three (red) layers were clearly identified from their Raman spectra. Raman image of a MoS2/WSe2 heterostructure recorded at 2K. The colors represent different layer numbers, compositions and ...
Hybrid tip-enhanced nanospectroscopy and nanoimaging of monolayer WSe2 with local strain control. Nano Lett. 2016;16(4):2621–7. CAS PubMed Google Scholar Singh R. CV Raman and the discovery of the Raman effect. Phys Perspect. 2002;4(4):399–420. Google Scholar Smith E, Dent G. ...