Search results for " anodic oxides"

showing 7 items of 7 documents

In situ stress, strain and dielectric measurements to understand electrostriction in anodic oxides

2014

Settore ING-IND/23 - Chimica Fisica Applicatastress strain dielectric measurements electrostriction anodic oxides
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Characterization of the Solid State Properties of Anodic Oxides on Magnetron Sputtered Ta, Nb and Ta-Nb Alloys

2012

Tantalum oxide, niobium oxide and Ta-Nb containing mixed oxides were grown by anodizing sputter-deposited Ta, Nb and Ta-Nb alloys of different compositions. A photoelectrochemical investigation was performed in order to estimate the band gap and the flat band potential of the oxides as a function of their composition. The band gap of the investigated Ta-Nb containing mixed oxides changed monotonically between those estimated for Ta2O5 (4.1 eV) and Nb2O5 (3.4 eV) and in agreement with a proposed correlation between the Band gap of an oxide and the difference of electronegativity of the oxide constituents. From the differential capacitance curves recorded in a wide range of electrode potentia…

431Materials scienceRenewable Energy Sustainability and the EnvironmentSolid-stateCondensed Matter PhysicsSolid State Properties Anodic Oxides Ta-Nb AlloysSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCharacterization (materials science)AnodeSettore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringCavity magnetronMaterials ChemistryElectrochemistry
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Effect of ammonium hydroxide addition in the anodizing electrolyte on the electronic properties of anodic oxides on Niobium

2010

ammonium hydroxide addition in the anodizing electrolyte electronic properties anodic oxides Niobium
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Characterization of the Solid State Properties of Anodic Oxides Grown on Sputter-deposited Al-Nb Alloys.

2012

Settore ING-IND/23 - Chimica Fisica ApplicataSolid State Properties Anodic Oxides Al-Nb Alloys
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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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Structural and Photocurrent Characterization of Anodic Oxides on Titanium

2010

Photocurrent Anodic Oxides Titanium
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Characterization of the Solid State Properties of Anodic Oxides on Ta-Nb Alloys as a Function of the Anodizing Conditions

2011

Tantalum oxide, niobium oxide and Ta-Nb containing mixed oxides were grown by anodizing sputter-deposited TaxNb(1-x) alloys with 0 ≤ x ≤ 1. A photoelectrochemical investigation was performed in order to estimate the band gap values of the oxides as a function of their composition as well as to estimate their flat band potential. Differential capacitance curves were recorded for all the investigated oxides in a wide range of electrode potential and for several frequencies of the alternative signal. The dependence of C on the applied potential and a.c. frequency was interpreted on the basis of amorphous semiconductor Schottky barrier, and allowed to estimate the dielectric constant of the inv…

Materials scienceSettore ING-IND/23 - Chimica Fisica ApplicataAnodizingMetallurgySolid-stateSolid State Properties Anodic OxidesTa-Nb Alloys Anodizing ConditionsFunction (mathematics)Solid State Properties Anodic Oxides Ta-Nb AlloysAnodeCharacterization (materials science)
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