Graphene based nano hybrids for high performance devices

Graphene has been drawing much attention in these recent years in the research field, due to its superior material properties and potential for many practical applications. I have been working on synthetizing, characterizing and testing graphene based nano-hybrid materials for electronic devices in the field of flexible printed electronics and energy storage devices. In this dissertation, the preparation, characterization and test of graphene based nano-hybrid materials will be presented and discussed. Starting from investigating environmentally friendly and safer synthesis and reduction techniques to obtain few layer Graphene and reduced Graphene Oxide, to UV-induced photo-polymerization of Reduced Graphene Oxide (rGO)/polymer hybrids and their potential application as a conductive ink for flexible printed electronic devices by tuning the property of polymers. The synthesis and applications of 3D nanostructured rGO/metal oxide hybrids as a high capacity electrode for electrochemical energy storage device such as supercapacitors will be then presented. Intercalation of sodium (Na+) ions into the electrode will be discussed along with their electrochemical performances. In conclusion, possible future methods to combine the results obtained for a 3D printed all solid state flexible graphene based supercapacitor will be proposed.