Self-organized titanium dioxide nanotube layers: influence of repetitive anodizations

Show simple item record Macák, Jan M. Sopha, Hanna Ingrid Knotek, Petr 2016-04-13T12:16:22Z 2016-04-13T12:16:22Z 2015
dc.identifier.isbn 978-80-87294-63-5
dc.description.abstract In the present work we report on the influence of repetitive anodization cycles upon the dimensions and morphology of self-organized TiO2 nanotube layers. Electrolytes based on ethylene glycol (containing water and NH4F) and widely used Titanium thin foils as substrates were utilized. These substrates were repetitively anodized, a total 3 times, and the resulting layers were removed and analyzed after each anodization step. Investigations by SEM show that, overall, nanotubes within nanotube layers produced by the repetitive anodization on one identical substrate, grow so that the tube diameter becomes gradually smaller. In addition, investigations carried out by AFM and mechanical profilometry show that repetitive anodization lead to significant smoothing (or polishing) of initially coarse substrates – this aspect is somewhat surprisingly not discussed in the existing literature. As a result, before each new anodization step, the nanotube layers grow on gradually smoother substrates with positive implications on the overall nanotube layer uniformity. eng
dc.format p. 33-38 eng
dc.language.iso eng
dc.publisher TANGER cze
dc.rights open access eng
dc.subject titanium dioxide eng
dc.subject nanotubes eng
dc.subject anodization eng
dc.subject roughness eng
dc.subject smoothening eng
dc.title Self-organized titanium dioxide nanotube layers: influence of repetitive anodizations eng
dc.type ConferenceObject eng
dc.event NANOCON 2015 (14-16 October 2015, Brno, Czech Republic) eng
dc.peerreviewed yes eng
dc.publicationstatus postprint eng
dc.project.ID EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL
dc.identifier.scopus 2-s2.0-84962796414

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