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Title: Symmetry breaking of graphene monolayers by molecular decoration
Authors: Dong, Xiaochen
Shi, Yumeng
Zhao, Yang
Chen, Dongmeng
Ye, Jun
Yao, Yugui
Gao, Fang
Ni, Zhenhua
Yu, Ting
Shen, Zexiang
Huang, Yinxi
Chen, Peng
Li, Lain-Jong
Keywords: DRNTU::Engineering::Materials::Microelectronics and semiconductor materials
Issue Date: 2009
Source: Dong, X., Shi, Y., Zhao, Y., Chen, D., Ye, J., Yao, Y., et al. (2009). Symmetry breaking of graphene monolayers by molecular decoration. Physical Review Letters (102), 1-4.
Series/Report no.: Physical review letters
Abstract: Aromatic molecules can effectively exfoliate graphite into graphene monolayers, and the resulting graphene monolayers sandwiched by the aromatic molecules exhibit a pronounced Raman G-band splitting, similar to that observed in single-walled carbon nanotubes. Raman measurements and calculations based on the force-constant model demonstrate that the absorbed aromatic molecules are responsible for the G-band splitting by removing the energy degeneracy of in-plane longitudinal and transverse optical phonons at the Γ point.
DOI: 10.1103/PhysRevLett.102.135501
Rights: © 2009 American Physical Society. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at: [Doi:]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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