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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 10
BKCSDE 31(10)
October 20, 2010 

p-Type Doping of Epitaxial Graphene by p-tert-Butylcalix[4]arene
Sunmin Park, Sena Yang, Ki jeong Kim, Kwanghyun No, Hangil Lee*
p-tert-Butylcalix[4]arene, Chemical doping, Epitaxial graphene, HRPES
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.
2809 - 2812
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