Spatially resolved mapping of electrical conductivity across individual domain (grain) boundaries in graphene.

@article{Clark2013SpatiallyRM,
  title={Spatially resolved mapping of electrical conductivity across individual domain (grain) boundaries in graphene.},
  author={Kendal W Clark and X-G Zhang and Ivan Vlassiouk and Guowei He and Randall M. Feenstra and An-Ping Li},
  journal={ACS nano},
  year={2013},
  volume={7 9},
  pages={7956-66}
}
All large-scale graphene films contain extended topological defects dividing graphene into domains or grains. Here, we spatially map electronic transport near specific domain and grain boundaries in both epitaxial graphene grown on SiC and CVD graphene on Cu subsequently transferred to a SiO2 substrate, with one-to-one correspondence to boundary structures. Boundaries coinciding with the substrate step on SiC exhibit a significant potential barrier for electron transport of epitaxial graphene… CONTINUE READING
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