Tailored fabrication of transferable and hollow weblike titanium dioxide structures

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Arto Hiltunen, Kimmo Lahtonen, Jesse Saari, Anniina Ojanperä, Essi Sarlin, Holger Wondraczek, Alexander Efimov, Kimmo Kaunisto, Paola Vivo, Chiara Maccato, Davide Barreca, Pedro Fardim, Nikolai Tkachenko, Mika Valden, Helge Lemmetyinen
Publisher: WILEY-VCH
Publication year: 2017
Journal: ChemPhysChem
Volume number: 18
Issue number: 1
Start page: 64
End page: 71
eISSN: 1439-7641


Abstract

The preparation of weblike titanium dioxide thin films by atomic layer deposition on cellulose biotemplates is reported. The method produces a TiO2 web, which is flexible and transferable from the deposition substrate to that of the end application. Removal of the cellulose template by calcination converts the amorphous titania to crystalline anatase and gives the structure a hollow morphology. The TiO2 webs are thoroughly characterized using electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy to give new insight into manufacturing of porous titanium dioxide structures by means of template-based methods. Functionality and integrity of the TiO2 hollow weblike thin films were successfully confirmed by applying them as electrodes in dye-sensitized solar cells.


Keywords

photochemistry, Surface analysis, templated synthesis, thin films, titanium

Last updated on 2019-19-07 at 04:32