High-yield organic dispersions of unfunctionalized graphene.

Hamilton, Christopher E; Lomeda, Jay R; Sun, Zhengzong; Tour, James M; Barron, Andrew R · Nano Lett · 2009

basic_science · Level V

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Abstract

We report a simple, high-yield, method of producing homogeneous dispersions of unfunctionalized and nonoxidized graphene nanosheets in ortho-dichlorobenzene (ODCB). Sonication/centrifugation of various graphite materials results in stable homogeneous dispersions. ODCB dispersions of graphene avert the need for harsh oxidation chemistry and allow for chemical functionalization of graphene materials by a range of methods. Additionally, films produced from ODCB-graphene have high conductivity.