| 초록 |
Graphene, two dimensional graphite, exhibits remarkable electronic conductivity as well as good mechanical properties that qualify it for applications in future flexible optoelectronic devices. In this experiment, conductive, transparent, and ultrathin graphene films as an alternative to the widely used metal oxide electrods were fabricated on colorless polyimides which present good optical transparency, thermal stability, and mechanical toughness. The graphene films were produced by chemical reduction and thermal reduction of spin-coated graphene oxide synthesized by the Hummer method. The optical, thermal and electrical properties of these resulting films were characterized by transmission electron microscopy (TEM), scanning electron microscope (SEM), atomic force microscopy (AFM), UV-vis spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analyger (TGA) and electrical conductivity measurements. |
