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Modelling of simultaneously obtained small and wide angle synchrotron-radiation scattering depth profiles of ordered titania nanotube thin films

Juraić, Krunoslav; Plodinec, Milivoj; Kereković, Irena; Meljanac, Daniel; Mandić, Vilko; Gracin, Davor; Janicki, Vesna; Bernstorff, Sigrid; Čeh, Miran; Hodžić, Aden; Gajović, Andreja (2020) Modelling of simultaneously obtained small and wide angle synchrotron-radiation scattering depth profiles of ordered titania nanotube thin films. Materials Chemistry and Physics, 240 . pp. 1-9. ISSN 0254-0584

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Abstract

Thin-films of vertically aligned titanium dioxide nanotubes are key constituents of charge transfer layers in 3rd generation photovoltaics. The beneficial charge transport primarily occurs due to the favourable microstructural features, i.e. the large effective surface-to-volume ratio. Here measuring methods are selected which are sensitive to microstructural features: Simultaneous Grazing Incidence Small and Wide Angle X-Ray Scattering (GISWAXS) and Scanning Electron Microscopy (SEM). Further, a model is developed for the simulation and explanation of the GISWAXS experimental data. Titanium nanotube arrays were investigated, which were previously successfully produced by electrochemical anodization of titanium thin film evaporated onto a zinc-oxide coated glass substrate. The developed model was shown to be appropriate to describe the obtained samples, which consist of arrays of single nanotubes with a diameter of 40- 80 nm, and a titanium dioxide layer with a porosity of 30 – 50%. Within this work, we presented simultaneous GISWAXS as a comparable tool to SEM for the fast and successful study of the average nanotubes’ diameters in nanotubes arrays.

Item Type: Article
Uncontrolled Keywords: titanium dioxide ; nanotube array ; GISAXS ; anodization, GIWAXS
Subjects: NATURAL SCIENCES > Physics
NATURAL SCIENCES > Physics > Condensed Matter Physics
Divisions: Division of Materials Physics
Projects:
Project titleProject leaderProject codeProject type
Nanokompoziti cinkovog oksida i titanijevog dioksida za fotonaponsku primjenu-ZOTONanoPhotovoltAndreja GajovićIP-2014-09-9419HRZZ
Uloga receptora autofagije u selektivnom uklanjanju mitohondrija-AutoMitoIvana Novak NakirUIP-2013-11-5246HRZZ
Depositing User: Krunoslav Juraić
Date Deposited: 24 Oct 2019 10:51
Last Modified: 12 Sep 2021 23:15
URI: http://fulir.irb.hr/id/eprint/5037
DOI: 10.1016/j.matchemphys.2019.122155

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