Journal
RSC ADVANCES
Volume 7, Issue 26, Pages 16104-16108Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra01330b
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Funding
- Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2016M3A7B4910429]
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We report an innovative method for chlorine doping of graphene utilizing an inductively coupled plasma system. TEM analysis reveals that the pre-doping (doping before wet transfer) and normal-doping (doping after wet transfer) were generally formed and trapped well between graphene layers; moreover, by thermal stability testing, the chlorine-trapped layer-by-layer graphene showed a very high thermal stability in vacuum at 230 degrees C for 100 hours. We also obtained the sheet resistance and optical transmittance of the Cl-trapped tri-layer graphene at 72 Omega sq(-1) and 95.64% at 550 nm wavelength, respectively. In addition, the high hole mobilities for the chlorine-trapped bi-and tri-layer graphene were observed up to 3352 and 3970 cm(2) V-1 s(-1), respectively.
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