Photo-oxidation of graphene in the presence of water

Nobuhiko Mitoma, Ryo Nouchi, Katsumi Tanigaki

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


Oxygen molecules are found to exhibit nonnegligible reactivity with graphene under strong light irradiation in the presence of water. The reaction is triggered by the laser Raman spectroscopy measurement itself, and the D band (ca. 1340 cm-1) becomes larger as the laser irradiation is prolonged. The electronic transport properties of the graphene derivative are also investigated and both the electron and hole mobility are found to be reduced. These results are attributed to oxidation of graphene. This primitive modification method can be exploited to manipulate the structural and electronic properties of graphene.

Original languageEnglish
Pages (from-to)1453-1456
Number of pages4
JournalJournal of Physical Chemistry C
Issue number3
Publication statusPublished - 2013 Jan 24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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