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Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures
Author(s) -
Hiltunen Arto,
Lahtonen Kimmo,
Saari Jesse,
Ojanperä Anniina,
Sarlin Essi,
Wondraczek Holger,
Efimov Alexander,
Kaunisto Kimmo,
Vivo Paola,
Maccato Chiara,
Barreca Davide,
Fardim Pedro,
Tkachenko Nikolai,
Valden Mika,
Lemmetyinen Helge
Publication year - 2017
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201600930
Subject(s) - anatase , titanium dioxide , materials science , x ray photoelectron spectroscopy , calcination , thin film , chemical engineering , cellulose , amorphous solid , scanning electron microscope , titanium , fabrication , substrate (aquarium) , atomic layer deposition , nanotechnology , photocatalysis , chemistry , composite material , catalysis , metallurgy , organic chemistry , medicine , alternative medicine , oceanography , pathology , geology , engineering
The preparation of weblike titanium dioxide thin films by atomic layer deposition on cellulose biotemplates is reported. The method produces a TiO 2 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 TiO 2 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 TiO 2 hollow weblike thin films were successfully confirmed by applying them as electrodes in dye‐sensitized solar cells.