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Electrochromic property of the viologen-anchored mesoporous TiO2 films

  • 3. Nanomaterials and synthesis
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Abstract

The electrochromic properties of the viologen-anchored mesoporous TiO2 (Meso-TiO2) films were investigated in this work. The Meso-TiO2 films, synthesized by evaporation-induced self-assembly (EISA) process, deposited on ITO electrodes were a worm-like structure with an average pore diameter of 7.0 nm. The electrochromic devices (ECDs) fabricated from the Meso-TiO2 demonstrated 3 times of coloration efficiency and considerably faster switching response, compared with those from the nanocrystalline films made of the 7 nm-sized TiO2 nanoparticles. The advantage of the Meso-TiO2 would originate from the well-organized mesopore structures, offering an efficient electrolyte transport as well as the fast electron transfer from the ITO electrode to the anchored viologen.

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Authors and Affiliations

  1. Department of Chemistry, Inha University, 253 Younghyun-dong, Nam-gu, Incheon, 402-751, Korea

    Hyun Ki Jheong, Yong Joo Kim, Jia Hong Pan & Wan In Lee

  2. Department of Electrical Engineering, Inha University, Incheon, 402-751, Korea

    Tae-Young Won

Authors
  1. Hyun Ki Jheong
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  2. Yong Joo Kim
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  3. Jia Hong Pan
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  4. Tae-Young Won
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  5. Wan In Lee
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Correspondence to Hyun Ki Jheong.

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Jheong, H.K., Kim, Y.J., Pan, J.H. et al. Electrochromic property of the viologen-anchored mesoporous TiO2 films. J Electroceram 17, 929–932 (2006). https://doi.org/10.1007/s10832-006-0463-3

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  • DOI: https://doi.org/10.1007/s10832-006-0463-3

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