Search results for " electrolytic capacitors"

showing 3 items of 3 documents

ELECTROCHEMICAL FABRICATION OF METAL/OXIDE/CONDUCTING POLYMER JUNCTIONS FOR ELECTRONIC DEVICES

2014

Electrochemical fabrication metal/oxide/conducting polymer junctions electronic devicesSettore ING-IND/23 - Chimica Fisica ApplicataSOLID STATE ELECTROLYTIC CAPACITORS FIELD EFFECT TRANSISTORS ANODIC OXIDES CONDUCTING POLYMERS PHOTOELECTROCHEMISTRY ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY PEDOT NIOBIUM OXIDE TITANIUM OXIDE TANTALUM OXIDE
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The effect of hydration layers on the anodic growth and on the dielectric properties of Al2O3 for electrolytic capacitors

2014

Hydrous films were grown on high purity and cubicity Al foils for electrolytic capacitors in deionized water, ethylene glycol - deionized water and in glycerol - deionized water for different immersion times. According to the X-ray diffraction patterns the hydration treatment allowed to grow a pseudo boehmite layer on Al surface whose morphology is appreciably affected by the bath composition. Capacitance measurements and photoelectrochemical findings suggest that a more compact barrier layer forms during the immersion in alcohol containing solutions. The hydration in water allowed to save energy and to prepare more blocking oxide films. The beneficial effect of hydration in hot water on th…

Electrolytic capacitorBoehmiteMaterials scienceInorganic chemistryMetals and AlloysOxideSurfaces and InterfacesDielectricSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsAmorphous solidlaw.inventionAnodeBarrier layerchemistry.chemical_compoundSettore ING-IND/23 - Chimica Fisica ApplicatachemistrylawMaterials ChemistryAnodic aluminaDielectricSurface treatmentCrystallizationhydration layers anodic film of Al2O3 dielectric properties electrolytic capacitors photoelectrochemical characterization
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The Effect of Anodizing Bath Composition on the Electronic Properties of Anodic Ta-Nb Mixed Oxides

2022

Anodic oxides were grown to 50 V on Ta-Nb sputtering deposited alloys, with high Nb content, in acetate ions containing an aqueous solution to study the effect of the anodizing bath composition on anodic layers’ dielectric properties. Photoelectrochemical measurements proved the presence of a photocurrent in the band gap of photon energy lower than oxides, due to optical transitions involving localized electronic states as a consequence of acetate ions incorporation. Flat band potential value estimates assessed the insulating nature of the anodic oxides grown in the acetate buffer solution. Differential capacitance measurements showed that the highest capacitance value was measured for the …

Settore ING-IND/23 - Chimica Fisica ApplicataNb oxide Ta oxide anodizing capacitance electrolytic capacitors mixed oxidesGeneral Chemical Engineeringanodizing; capacitance; electrolytic capacitors; mixed oxides; Ta oxide; Nb oxideGeneral Materials ScienceNanomaterials; Volume 12; Issue 24; Pages: 4439
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