Zobrazit minimální záznam
dc.contributor.author |
Motola, Martin
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dc.contributor.author |
Hromádko, Luděk
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dc.contributor.author |
Přikryl, Jan
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dc.contributor.author |
Sopha, Hanna
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dc.contributor.author |
Krbal, Milos
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dc.contributor.author |
Macak, Jan
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dc.date.accessioned |
2020-12-04T08:13:25Z |
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dc.date.available |
2020-12-04T08:13:25Z |
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dc.date.issued |
2020 |
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dc.identifier.issn |
0013-4686 |
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dc.identifier.uri |
https://hdl.handle.net/10195/76805 |
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dc.description.abstract |
In this work, we present the influence of thermal annealing on morphological, structural, electrical, optical, and photoelectrochemical properties of double- (DW) and single-wall (SW) TiO2 nanotube (TNT) layers. High-aspect ratio TNT layers with a thickness of ~5 µm and ~20 µm with an average inner diameter of ~250 nm and ~130 nm, respectively, were prepared via electrochemical anodization of Ti foil in two different fluoride containing ethylene glycol-based electrolytes. The inner wall of the native DW TNT layers was quantitatively removed via a mild pre-annealing followed by a selective etching treatment in piranha solution, yielding SW TNT layers. The obtained SW TNT layers annealed at 300 – 500 °C possess enhanced conductivity by 1 – 2 orders compared to their DW counterparts. The photoelectrochemical properties of SW TNT layers are enhanced compared to their DW counterparts in the annealing temperature range 300 – 800 °C. In principle, the SW TNT layers could be potentially favored to the DW TNT layers in electrical and photoelectrochemical applications due to their more superior intrinsic properties. |
en |
dc.language.iso |
en |
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dc.publisher |
Elsevier |
eng |
dc.relation.ispartof |
Electrochimica Acta. August 2020, vol. 352, 136479 |
eng |
dc.rights |
open access (CC BY-NC-ND 4.0) |
eng |
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
eng |
dc.subject |
TiO2 nanotubes |
eng |
dc.subject |
Annealing |
eng |
dc.subject |
Single-wall |
eng |
dc.subject |
Conductivity |
eng |
dc.subject |
Photoelectrochemistry |
eng |
dc.title |
Intrinsic properties of high-aspect ratio single- and double-wall anodic TiO2 nanotube layers annealed at different temperatures |
eng |
dc.type |
Article |
eng |
dc.peerreviewed |
yes |
eng |
dc.publicationstatus |
This is a postprint of an article published in Electrochimica Acta. The final authenticated version is available online at: https://doi.org/10.1016/j.electacta.2020.136479 or
https://www.sciencedirect.com/science/article/pii/S0013468620308720 |
eng |
dc.identifier.doi |
10.1016/j.electacta.2020.136479 |
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dc.relation.publisherversion |
https://www.sciencedirect.com/science/article/pii/S0013468620308720 |
eng |
dc.project.ID |
EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL |
eng |
dc.identifier.wos |
000541156300005 |
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dc.identifier.scopus |
2-s2.0-85085268960 |
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Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je open access (CC BY-NC-ND 4.0)
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