Photo-oxidation of Graphene in the Presence of Water

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• 作者：Nobuhiko Mitoma ; Ryo Nouchi ; Katsumi Tanigaki
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：January 24, 2013
• 年：2013
• 卷：117
• 期：3
• 页码：1453-1456
• 全文大小：254K
• 年卷期：v.117,no.3(January 24, 2013)
• ISSN：1932-7455

文摘

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^鈥?) 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.