Impact of electrode geometry and thickness on planar on-chip microsupercapacitors
Agin Vyas, Kejian Wang, Qi Li, Amin M. Saleem, Maria Bylund, Rickard Andersson, Vincent Desmaris, Anderson D. Smith, Per Lundgren, Peter Enoksson
Abstract
We report an assessment of the influence of both finger geometry and vertically-oriented carbon nanofiber lengths in planar micro-supercapacitors. Increasing the finger number leads to an up-scaling in areal power densities, which increases with scan rate. Growing the nanofibers longer, however, does not lead to a proportional growth in capacitance, proposedly related to limited ion penetration of the electrode.
Topics & Concepts
PlanarSupercapacitorElectrodeCapacitanceMaterials sciencePenetration (warfare)Horizontal scan rateScalingCarbon nanofiberOptoelectronicsNanofiberChipComposite materialNanotechnologyGeometryElectrical engineeringCarbon nanotubeChemistryCyclic voltammetryElectrochemistryComputer scienceMathematicsOperations researchComputer graphics (images)EngineeringPhysical chemistrySupercapacitor Materials and FabricationAdvancements in Battery MaterialsGraphene research and applications