Estimation of Young's modulus of graphene by Raman spectroscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 22866776.
- Also identified by DOI 10.1021/nl301073q.
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Abstract
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 bilayer graphene are 2.4 ± 0.4 and 2.0 ± 0.5 TPa, respectively.
Medical subject headings
- Algorithms
- Graphite
- Materials Testing
- Nanostructures
- Spectrum Analysis, Raman