A simple method to synthesize continuous large area nitrogen-doped graphene

Hui Gao*, Li Song, Wenhua Guo, Liang Huang, Dezheng Yang, Fangcong Wang, Yalu Zuo, Xiaolong Fan, Zheng Liu, Wei Gao, Robert Vajtai, Ken Hackenberg, Pulickel M. Ajayan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

143 Citations (Scopus)

Abstract

Large area nitrogen (N)-doped graphene films were grown on copper foil by chemical vapor deposition. The as-grown films consisted of a single atomic layer that was continuous across the copper surface steps and grain boundaries, and could be easily transferred to a variety of substrates. N-doping was confirmed by X-ray photoelectron spectroscopy, Raman spectroscopy, and elemental mapping. N atoms were suggested to mainly form a "pyrrolic" nitrogen structure, and the doping level of N reached up to 3.4 at.%. The N-doped graphene exhibited an n-type behavior, and nitrogen doping would open a band gap in the graphene. This study presents use of a new liquid precursor to obtain large area, continuous and mostly single atom layer N-doped graphene films.

Original languageEnglish
Pages (from-to)4476-4482
Number of pages7
JournalCarbon
Volume50
Issue number12
DOIs
Publication statusPublished - Oct 2012
Externally publishedYes

ASJC Scopus Subject Areas

  • General Chemistry
  • General Materials Science

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