μSCs for Energy Harvesting: Fabrication Processes and Perfromances Analysis of Metal Oxides Electroplating onto LIG Electrodes

Due to their high power density, rapid charge and discharge capabilities, and long lifetime, Micro-Supercapacitors (μSC) have garnered significant interest for their possible utilization for energy harvesting in micro and integrated electronics. The effort in this work lies in the optimization of materials and in manufacturing processes of their electrodes rather than in their integration methods with other micro devices to obtain more smart and complex systems. The interfacial properties of thin film Transition Metal Oxides (TMOs) will be studied for this aim. Their high surface area and easy deposition technique (electroplating) make them an excellent candidate as a cathode and anode for μSC. Laser Induced Graphene (LIG) will be used as substrate, and so, its great electronic properties and cheap, fast and green fabrication methods. The final aim of this research work is to realize an asymmetric device in order to exploit the properties of two different TMOs for the two electrodes of the SC and extend its operating voltage window in aqueous electrolyte, aqueous electrolyte.