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Issue 19, 2012
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Anodically formed transparent mesoporous TiO2 electrodes for high electrochromic contrast

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Abstract

In the present work, we show that metallic Ti thin films on FTO glass can be completely anodized to a mesoporous oxide layer using a glycerol–K2HPO4 electrolyte at elevated temperatures (∼180 °C). This results in highly transparent mesoporous oxide coated electrodes that provide a significantly enhanced transparency compared with the classic nanoparticle layers or TiO2 nanotube layers. We show that in electrochromic switching experiments these electrodes therefore exhibit a significantly higher contrast compared to other TiO2 nanostructures. Moreover, this type of anodic titania layer is produced in a fluoride-free electrolyte and adheres very well to the FTO glass, both features that are highly beneficial in view of an application in electrochromic devices.

Graphical abstract: Anodically formed transparent mesoporous TiO2 electrodes for high electrochromic contrast

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Publication details

The article was received on 28 Feb 2012, accepted on 14 Mar 2012 and first published on 15 Mar 2012


Article type: Paper
DOI: 10.1039/C2JM31244A
Citation: J. Mater. Chem., 2012,22, 9821-9825
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    Anodically formed transparent mesoporous TiO2 electrodes for high electrochromic contrast

    K. Lee, D. Kim, S. Berger, R. Kirchgeorg and P. Schmuki, J. Mater. Chem., 2012, 22, 9821
    DOI: 10.1039/C2JM31244A

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