Performance enhancement of natural pigments on a high light transmission ZrO2 nanoparticle layer in a water-based dye-sensitized solar cell

Authors

  • Yen Hsun Su,

    Corresponding author
    1. Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan
    2. Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan
    • Correspondence: Yen Hsun Su, Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.

      E-mail: kistic@gmail.com

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  • Yi-Sheng Lai

    1. Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan
    2. Department of Chemical and Materials Engineering, National Central University, Taoyuan County, Taiwan
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SUMMARY

A coating of ZrO2 nanoparticles on an indium tin oxide (ITO) substrate in an alcohol and acetic acid solution forms voids that can be used to tune the effective dielectric constant of mixing layers. After tuning to be between the dielectric constant of ITO (2.5–2.0) and air (~1), the light transmission was enhanced by about eight times. A ZrO2 nanoparticle layer with high light transmission was thus fabricated for a natural pigment-sensitized solar cell. In order to set up an environmentally friendly dye-sensitized solar cell, a water-based electrolyte was used. The efficiency of the green part of Codiaeum varie pigment on the ZrO2 nanoparticle layer was 0.688%. Copyright © 2013 John Wiley & Sons, Ltd.

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