Formation of TiO2-based columnlike nanostructured anodic films on pure and doped titanium layers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F15%3APU117099" target="_blank" >RIV/00216305:26620/15:PU117099 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Formation of TiO2-based columnlike nanostructured anodic films on pure and doped titanium layers

Popis výsledku v původním jazyce

Nanostructured titanium oxide films are widely used for various applications, for instance solar energy conversion, where an increment in the surface-to-volume ratio and band-gap tuning may drastically improve the film performance. In our work to date, we have investigated the anodic process of porous-alumina-assisted formation of titanium oxide nanocolumn arrays from pure and doped titanium layers. We observe a substantial increase of chemical stability in the case of a doped titanium, which is causedby suppressing the field crystallization of titanium oxide and its mixing with alumina during the anodic process. Experimental samples were thin aluminium layers superimposed on either a pure Ti or a doped Ti layer sputtered onto SiO2/Si substrates. Pieces of both samples were anodized in an organic-acid-based electrolyte at 40 V and reanodized to potentials up to 150 V in order to grow titania nanocolumns in the alumina pores. The alumina matrix was then removed by selective etching in

Název v anglickém jazyce

Formation of TiO2-based columnlike nanostructured anodic films on pure and doped titanium layers

Popis výsledku anglicky

Nanostructured titanium oxide films are widely used for various applications, for instance solar energy conversion, where an increment in the surface-to-volume ratio and band-gap tuning may drastically improve the film performance. In our work to date, we have investigated the anodic process of porous-alumina-assisted formation of titanium oxide nanocolumn arrays from pure and doped titanium layers. We observe a substantial increase of chemical stability in the case of a doped titanium, which is causedby suppressing the field crystallization of titanium oxide and its mixing with alumina during the anodic process. Experimental samples were thin aluminium layers superimposed on either a pure Ti or a doped Ti layer sputtered onto SiO2/Si substrates. Pieces of both samples were anodized in an organic-acid-based electrolyte at 40 V and reanodized to potentials up to 150 V in order to grow titania nanocolumns in the alumina pores. The alumina matrix was then removed by selective etching in

Druh

O - Ostatní výsledky

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GJ15-23005Y" target="_blank" >GJ15-23005Y: Vytváření a vlastnosti polí nanosloupků založených na TiO2 za využití anodické oxidace dopovaných vrstev titanu pomocí porézní aluminy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů