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p-Type Doping of Epitaxial Graphene by p-tert-Butylcalix[4]arene
- Authors
- Park, Sunmin; Yang, Sena; Kim, Ki-jeong; No, Kwanghyun; Lee, Hangil
- Issue Date
- Oct-2010
- Publisher
- KOREAN CHEMICAL SOC
- Keywords
- p-tert-Butylcalix[4]arene; Chemical doping; Epitaxial graphene; HRPES
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.31, no.10, pp 2809 - 2812
- Pages
- 4
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 31
- Number
- 10
- Start Page
- 2809
- End Page
- 2812
- ISSN
- 0253-2964
1229-5949
- 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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