A solid-state integrated photo-supercapacitor based on ZnO nanorod arrays decorated with Ag<sub>2</sub>S quantum dots as the photoanode and a PEDOT charge storage counter-electrode
Daniel J. Solis, Elena Navarrete-Astorga, Ricardo Schrebler, J.J. Peinado-Pérez, F. Martı́n, J.R. Ramos-Barrado, Enrique A. Dalchiele
Abstract
S quantum dots deposited on ZnO nanorods, which were electrochemically grown on ZnO seed layers, as the photoanode. The supercapacitor part is composed of a electrodeposited poly(3,4-ethylene-dioxythiophene) PEDOT film as the counter-electrode and an ionic liquid-based electrolyte between them deposited by the dip coating method. The different nanostructures and electrodes were morphologically and structurally characterized, and the device was electrochemically characterized and could reach a potential of 0.33 V during photocharge and a storage efficiency of 6.83%.
Topics & Concepts
NanorodQuantum dotSupercapacitorPEDOT:PSSElectrodeMaterials scienceOptoelectronicsCharge (physics)NanotechnologySolid-stateChemical engineeringElectrochemistryLayer (electronics)ChemistryPhysicsPhysical chemistryEngineeringQuantum mechanicsSupercapacitor Materials and FabricationConducting polymers and applicationsAdvanced battery technologies research