Mechanical properties of polycrystalline graphene based on a realistic atomistic model

  title={Mechanical properties of polycrystalline graphene based on a realistic atomistic model},
  author={Jani Kotakoski and Jannik C. Meyer},
  journal={Physical Review B},
Graphene can at present be grown at large quantities only by the chemical vapor deposition method, which produces polycrystalline samples. Here, we describe a method for constructing realistic polycrystalline graphene samples for atomistic simulations, and apply it for studying their mechanical properties. We show that cracks initiate at points where grain boundaries meet and then propagate through grains predominantly in zigzag or armchair directions, in agreement with recent experimental work… 

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