Measurement of the elastic properties and intrinsic strength of monolayer graphene.

@article{Lee2008MeasurementOT,
  title={Measurement of the elastic properties and intrinsic strength of monolayer graphene.},
  author={Changgu Lee and Xiaoding Wei and Jeffrey W. Kysar and James Hone},
  journal={Science},
  year={2008},
  volume={321 5887},
  pages={
          385-8
        }
}
  • Changgu Lee, Xiaoding Wei, +1 author James Hone
  • Published in Science 2008
  • Materials Science, Medicine
  • 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… CONTINUE READING

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