Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures

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

doi:10.1002/cphc.201600930

Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures

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

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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.

Original language	English
Pages (from-to)	64-71
Number of pages	8
Journal	ChemPhysChem
Volume	18
Early online date	16 Nov 2016
DOIs	https://doi.org/10.1002/cphc.201600930
Publication status	Published - 2017
Publication type	A1 Journal article-refereed

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title = "Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures",

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.",

author = "Arto Hiltunen and Kimmo Lahtonen and Jesse Saari and Anniina Ojanper{\"a} and Essi Sarlin and Holger Wondraczek and Alexander Efimov and Kimmo Kaunisto and Paola Vivo and Chiara Maccato and Davide Barreca and Pedro Fardim and Nikolai Tkachenko and Mika Valden and Helge Lemmetyinen",

note = "{\textcopyright} 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.",

year = "2017",

doi = "10.1002/cphc.201600930",

language = "English",

volume = "18",

pages = "64--71",

journal = "ChemPhysChem",

issn = "1439-4235",

publisher = "Wiley-VCH Verlag",

}

TY - JOUR

T1 - Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures

AU - Hiltunen, Arto

AU - Lahtonen, Kimmo

AU - Saari, Jesse

AU - Ojanperä, Anniina

AU - Sarlin, Essi

AU - Wondraczek, Holger

AU - Efimov, Alexander

AU - Kaunisto, Kimmo

AU - Vivo, Paola

AU - Maccato, Chiara

AU - Barreca, Davide

AU - Fardim, Pedro

AU - Tkachenko, Nikolai

AU - Valden, Mika

AU - Lemmetyinen, Helge

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

U2 - 10.1002/cphc.201600930

DO - 10.1002/cphc.201600930

M3 - Article

C2 - 27805802

SN - 1439-4235

VL - 18

SP - 64

EP - 71

JO - ChemPhysChem

JF - ChemPhysChem

ER -

Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures

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