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Doping of boron or nitrogen to multilayered graphene grown on copper by thermal chemical vapor deposition of methane and vapor of phenylboronic acid or melamine

  • Ryoko Furukawa (a1), Yuno Yamamoto (a1), Yoji Nabei (a1) and Shunji Bandow (a1)

Abstract

Either boron or nitrogen doped multilayered graphene was prepared by thermal chemical vapor deposition (CVD). Obtained heteroatom doped graphene was examined by Raman scattering, x-ray photo electron spectroscopy (XPS) and temperature dependence of sheet resistance. From the Raman scattering, obvious increase of ID/IG ratio could not be detected by boron doping, while it increased by ∼0.2 or more for nitrogen doped sample. From XPS, doping rates of boron and nitrogen were estimated to be in the range of 5∼12 at% and 1∼2 at%, respectively. XPS also showed that the boron and nitrogen atoms would locate at the doping sites of both graphitic and neighborhood of atomic defect. Magnitude of sheet resistance was decreased by either doping of boron or nitrogen.

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