简介：
Graphene, a new class of two-dimensional carbon nanostructure, has demonstrated unique properties such as high mobility and saturation velocity for both electrons and holes, room-temperature quantum Hall effect, and good optical transparency, which make it a realistic candidate for a number of electronic applications. In particular, the advantages of low resistivity, high chemical stability, and mechanical strength call for the incorporation of graphene as transparent electrodes in electronic devices and composite anode materials in energy storage.

The chemical reduction of exfoliated graphene oxide (GO), despite the presence of defects, appears to be a feasible fabrication technique in that it enables mass production of graphene sheets. The solubility and low cost of GO used for the fabrication of graphene based transparent electrodes, which render the achievement of high electrical conductivity and optical transmittance, thus fulfill the requirements for the realization of large area and inexpensive organic electronic devices such as organic photovoltaics (OPVs), or organic field-effect transistors (OFETs). Further, due to its structural flexibility and re-assembly properties, graphene sheet holds promise as matrices for metal and metal oxide nanoparticles to improve their electrochemical performance. Thereby, graphene based nanosheets or nanocomposites with sandwich or core-shell structures can be achieved, giving rise to high performance electrode materials in lithium ion batteries and fuel cells.