Photo-oxidation of Graphene in the Presence of Water

Abstract

Oxygen molecules are found to exhibit non-negligible 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.

22 pages including supporting information

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Cited by in corpus (9)

• Raman Fingerprints of Graphene Produced by Anodic Electrochemical Exfoliation
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• Light-Driven Nanoscale Vectorial Currents
• Non-invasive Scanning Raman Spectroscopy and Tomography for Graphene Membrane Characterization
• In-situ Raman study of laser-induced graphene oxidation
• Gate-controlled photo-oxidation of graphene for electronic structure modification
• Photochemical reaction on graphene surfaces controlled by substrate-surface modification with polar self-assembled monolayers
• Valley-antisymmetric potential in graphene under dynamical deformation
• Dynamic strain in gold nanoparticle supported graphene induced by focused laser irradiation