An arc-discharge method using a buffer gas containing carbon dioxide has been developed for the efficient and large-scale synthesis of few-layered graphene.The resulting samples of few-layered graphene,well-dispersed in organic solvents such as N,N-dimethylformamide(DMF)and 1,2-dichlorobenzene(o-DCB),were examined by transmission electron microscopy(TEM),X-ray diffraction(XRD),Raman spectroscopy,atomic force microscopy(AFM),and thermal gravimetric analysis(TGA).The electrical conductivity and transparency of flexible films prepared using a direct solution process have also been studied.
