Search results for " Al-Nb"

showing 6 items of 6 documents

Structural and compositional analysis of anodic films on Al-Nb sputter-deposited alloys

2006

The photoelectrochemical behavior of anodic films on Al alloys, containing titanium, tantalum, and tungsten (valve metals), has been studied as a function of alloy composition and anodizing conditions. Photocurrent spectroscopy has been used to get information on bandgap and the flatband potential values of different mixed oxides. Both insulator-like and semiconducting behavior has been observed for anodic oxides grown on Al-W and Al-Ti alloys dependent on alloy initial composition. Optical bandgap values, Eg,opt, of different oxides are in accordance with predictions based on the correlation between Eg,opt and the difference of electronegativities of the oxide constituents, indicating pote…

Anodic films Al-Nb sputter-deposited alloys
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Electronic properties of Al-Nb mixed oxide as a function of their composition

2009

Electronic properties Al-Nb mixed oxide
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Dielectric Properties of Al-Nb Amorphous Mixed Oxides

2013

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Materials scienceInorganic chemistryDielectric Propertieschemistry.chemical_elementDielectricElectronic Optical and Magnetic MaterialsAmorphous solidSettore ING-IND/23 - Chimica Fisica ApplicataMixed OxideschemistryChemical engineeringAluminiumAluminiumDielectric Properties Al-Nb amorphous mixed oxidesECS Journal of Solid State Science and Technology
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Physico-chemical characterization of anodic films on sputter-deposited Al-Nb alloys.

2013

Settore ING-IND/23 - Chimica Fisica ApplicataPhysico-chemical characterization anodic films Al-Nb alloys
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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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Tailoring of the solid state properties of Al-Nb mixed oxides: A photoelectrochemical study

2013

Al-Nb containing mixed oxides were grown by anodizing sputter-deposited Al-Nb alloys of different compositions. A photoelectrochemical investigation was carried out in order to estimate the band gap, flat band potential, and conductivity type of these oxides as a function of their composition. The dependence of the band gap on the composition of mixed sp-d metal oxides has been rationalized by using a semiempirical correlation between the difference of electronegativity and band gap of oxides proposed in the literature some years ago and recently tested for regular d-d metal mixed oxides. The band gap increase observed as a function of Al content into the oxides seems mainly depending on th…

solid state properties Al-Nb mixed oxides photoelectrochemical studySettore ING-IND/23 - Chimica Fisica Applicata
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