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http://dx.doi.org/10.5012/bkcs.2010.31.10.2809

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)
Publication Information
Bulletin of the Korean Chemical Society / v.31, no.10, 2010 , pp. 2809-2812 More about this Journal
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.
Keywords
p-tert-Butylcalix[4]arene; Chemical doping; Epitaxial graphene; HRPES;
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