| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mozalev, Alexander
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Porous-anodic-alumina-templated Ta-Nb-alloy oxide coatings via the magnetron-sputtering anodizing as novel 3D nanostructured electrodes for energy-storage applicationscitations
- 2024XPS characterization of metal-oxide nanocolumn arrays via anodizing Al/Nb/Mo metal layers
- 2023Se-doped Nb2O5-Al2O3 composite-ceramic nanoarrays via the anodizing of Al/Nb bilayer in selenic acidcitations
- 2021Metal-substrate-supported tungsten-oxide nanoarrays via porous-alumina-assisted anodization: from nanocolumns to nanocapsules and nanotubes ; Nanouspořádané pole oxidů wolframu na kovovém substrátu vyrobené pomocí anodizace přes porézní aluminu: od nanosloupků po nanokaplsa a nanotrubkycitations
- 2021Anodic formation and SEM characterization of zirconium oxide nanostructured films
- 2021Dielectric properties of nanostructured mixed-oxide films formed by anodizing Al/Zr bilayers
- 2021The Growth, Composition, and Functional Properties of Self‐Organized Nanostructured ZrO2‐Al2O3 Anodic Films for Advanced Dielectric Applicationscitations
- 2018Resistive switching in TiO2 nanocolumn arrays electrochemically growncitations
- 2018Porous‐Alumina‐Assisted Growth of Nanostructured Anodic Films on Ti−Nb Alloyscitations
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article
The Growth, Composition, and Functional Properties of Self‐Organized Nanostructured ZrO2‐Al2O3 Anodic Films for Advanced Dielectric Applications
Abstract
<jats:title>Abstract</jats:title><jats:p>An aluminum‐on‐zirconium bilayer is anodized in oxalic acid solution to transform the Al layer into porous anodic alumina (PAA); this is followed by the PAA‐assisted re‐anodizing of the Zr underlayer at voltages 40–280 V. The process results in an array of amorphous ZrO<jats:sub>2</jats:sub> nanocolumns, 45–330 nm long, partly filling the PAA pores and anchored to a continuous bottom oxide layer under the pores, 20–130 nm thick, comprising a ZrO<jats:sub>1.8</jats:sub> spongelike sublayer superimposed on a ZrO<jats:sub>1.5</jats:sub> compact sublayer. The thicknesses of the nanostructured and bottom oxides increase linearly with re‐anodizing voltage, disclosing a low film formation ratio of 1.65 nm V<jats:sup>−1</jats:sup>, which is impossible with anodic ZrO<jats:sub>2</jats:sub>. The amorphous ZrO<jats:sub>2</jats:sub> nanocolumns embedded in the highly resistive amorphous PAA matrix combined with the laminated bottom oxide reveal a nearly ideal dielectric performance in a wide frequency range (10<jats:sup>−4</jats:sup>–10<jats:sup>4</jats:sup> Hz) complemented by the low leakage currents and high breakdown voltages (up to 280 V). The film permittivity may be tuned, from 11 to 20, by combining the anodizing and pore‐widening techniques. The advantageous architecture, fabrication approach, and functional properties of the films allow the design of a prototype of an emerging hybrid polymer electrolytic microcapacitor for on‐chip integration.</jats:p>