Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 164, Issue -, Pages 67-70Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2012.06.015
Keywords
Electrochromism; Prussian Blue; Mesoporous titania; Electrodeposition
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Funding
- German Science Foundation (DFG) [WA 1116/14]
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In the ordered mesopores of thin films of semiconductive titanium dioxide, synthesized by a sol gel approach employing a block-co-polymer as structure-directing agent, and dip-coating, Prussian Blue is electrochemically deposited. Such hybrid films were for the first time prepared and tested for their electrochromic properties. By applying only low current densities in a voltammetric cycle large differences in the optical transmission are recorded. Due to short diffusion lengths for the charge carriers in the hybrid films the electrochromic switching is fast, reversible, highly repeatable and reaches high coloration efficiencies. Thus, this material is a promising new candidate for use in smart windows. (C) 2012 Elsevier Inc. All rights reserved.
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