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Title: Effect of uniaxial strain on low frequency Raman modes in few layers molybdenum disulfide
Authors: Lau, SP 
Chui, YS 
Lin, S 
Li, Y 
Issue Date: Jan-2016
Source: ECS journal of solid state science and technology, Jan. 2016, v. 5, no. 11, p. Q3033-Q3037
Abstract: The effect of uniaxial tensile strain on the shear mode (C mode) and layer breathing mode (LB mode) of few layers MoS2 were studied. The C mode is doubly degenerated into two sub-peaks as applied strain increases. No measurable Raman shift for the LB mode is observed, while its Raman intensity decreases gradually as the strain increases. In addition, the C and LB modes exhibit distinguished thickness dependence. The C mode shows a clear blueshift as the strain increases, while the LB mode is softened in the process. Moreover, the evolution of C mode with thickness follows an enhanced linear-chain model plus a linear component very well. It implies that the C mode is a better thickness navigator as compared to the L mode.
Publisher: Electrochemical Society
Journal: ECS journal of solid state science and technology 
ISSN: 2162-8769
EISSN: 2162-8777
DOI: 10.1149/2.0071611jss
Rights: © 2016 The Electrochemical Society. All rights reserved.
This manuscript version is made available under the CC-BY-NC-ND 4.0 license (https://creativecommons.org/licenses/by-nc-nd/4.0/).
The following publication Li, Y., Lin, S., San Chui, Y., & Lau, S. P. (2016). Effect of uniaxial strain on low frequency Raman modes in few layers molybdenum disulfide. ECS Journal of Solid State Science and Technology, 5(11), Q3033 is available at https://doi.org/10.1149/2.0071611jss.
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