Atmospheric oxygen binding and hole doping in deformed graphene on a SiO₂ substrate.

@article{Ryu2010AtmosphericOB,
  title={Atmospheric oxygen binding and hole doping in deformed graphene on a SiO₂ substrate.},
  author={Sunmin Ryu and L. F. Liu and St{\'e}phane Berciaud and Young-jun Yu and Haitao Liu and Philip Kim and George W. Flynn and Louis E Brus},
  journal={Nano letters},
  year={2010},
  volume={10 12},
  pages={
          4944-51
        }
}
  • Sunmin Ryu, L. F. Liu, +5 authors Louis E Brus
  • Published in Nano letters 2010
  • Materials Science, Medicine, Physics
  • Using micro-Raman spectroscopy and scanning tunneling microscopy, we study the relationship between structural distortion and electrical hole doping of graphene on a silicon dioxide substrate. The observed upshift of the Raman G band represents charge doping and not compressive strain. Two independent factors control the doping: (1) the degree of graphene coupling to the substrate and (2) exposure to oxygen and moisture. Thermal annealing induces a pronounced structural distortion due to close… CONTINUE READING

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