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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
Abstract
We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The force-displacement behavior is interpreted within a framework of nonlinear elastic stress-strain response, and yields second- and third-order elastic stiffnesses of 340 newtons per meter (N m –1 ) and –690 Nm –1 , respectively. The breaking strength is 42 N m –1 and represents the intrinsic strength of a defect-free sheet. These quantities correspond to a Young's modulus of E = 1.0 terapascals, third-order elastic stiffness of D = –2.0 terapascals, and intrinsic strength of σ int = 130 gigapascals for bulk graphite. These experiments establish graphene as the strongest material ever measured, and show that atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.
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Atomically Thin MoS 2 : A New Direct-Gap Semiconductor
Mak, K. F., Lee, C., Hone, J., Shan, J., & Heinz, T. F. (2010) · Physical Review Letters · doi:10.1103/physrevlett.105.136805 · Cited by 15,586
Self-citationGraphene: Status and Prospects
Geim, A. K. (2009) · Science · doi:10.1126/science.1158877 · Cited by 13,942
Wang, H., Maiyalagan, T., & Wang, X. (2012) · ACS Catalysis · doi:10.1021/cs200652y · Cited by 3,618
Self-Assembled Graphene Hydrogel via a One-Step Hydrothermal Process
Xu, Y., Sheng, K., Li, C., & Shi, G. (2010) · ACS Nano · doi:10.1021/nn101187z · Cited by 3,251
Piezoelectricity of single-atomic-layer MoS2 for energy conversion and piezotronics
Wu, W., Wang, L., Li, Y., Zhang, F., Lin, L., Niu, S., Chenet, D., Zhang, X., Hao, Y., Heinz, T. F., et al. (2014) · Nature · doi:10.1038/nature13792 · Cited by 2,287
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Metadata
- Authors
- Lee, C., Wei, X., Kysar, J. W., & Hone, J.
- Venue
- Science
- Published
- 2008-07-18
- Volume
- 321
- Issue
- 5887
- Pages
- 385-388
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2010971702
- Cited by
- 20,847
- References
- 1
- FWCI
- 201.76
- Type
- journal article
- Language
- en
- Open access
- closed
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