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Estimation of Young's Modulus of Graphene by Raman Spectroscopy

The Young's modulus of graphene is estimated by measuring the strain applied by a pressure difference across graphene membranes using Raman spectroscopy. The strain induced on pressurized graphene balloons can be estimated directly from the peak shift of the Raman G band. By comparing the measured strain with numerical simulation, we obtained the Young's modulus of graphene. The estimated Young's modulus values of single- and bi-layer graphene are 2.4\pm0.4 TPa and 2.0\pm0.5 TPa, respectively.

preprint2012arXivOpen access
Jae-Ung LeeDuhee YoonHyeonsik Cheong
cond-mat.mes-hall
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Jae-Ung LeeDuhee YoonHyeonsik Cheong

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