Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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p-Type Doping of Epitaxial Graphene by p-tert-Butylcalix[4]arene

  • Park, Sun-Min (Department of Chemistry, Sookmyung Women's University) ;
  • Yang, Se-Na (Department of Chemistry, Sookmyung Women's University) ;
  • Kim, Ki-Jeong (Pohang Accelerator Laboratory, POSTECH) ;
  • No, Kwang-Hyun (Department of Chemistry, Sookmyung Women's University) ;
  • Lee, Hang-Il (Department of Chemistry, Sookmyung Women's University)
  • Received : 2010.07.26
  • Accepted : 2010.08.15
  • Published : 2010.10.20
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Abstract

The Chemical Doping of epitaxial graphene (EG) due to p-tert-butylcalix[4]arene was investigated using high resolution photoemission spectroscopy (HRPES). The measured work function changes verified that increased adsorption of the p-tert-butylcalix[4]arene on EG showed p-type doping characteristics due to charge transfer from the graphene to the p-tert-butylcalix[4]arene through the hydroxyl group. A single oxygen bonding feature associated with the O 1s peak was clearly observed in the core-level spectra, indicating the presence of one equivalent adsorption state.

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References

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