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Effect of Photoanode Design on the Photoelectrochemical Performance of Dye-Sensitized Solar Cells Based on SnO 2 Nanocomposite

Author

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  • I-Ming Hung

    (Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan)

  • Ripon Bhattacharjee

    (Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan)

Abstract

Li-doped ZnO (LZO) aggregated nanoparticles are used as an insulating layer in SnO 2 nanocomposite (SNC) photoanodes to suppress the recombination process in dye-sensitized solar cells (DSSCs). Various weight percentages of SnO 2 nanoparticles (SNPs) and SnO 2 nanoflowers (SNFs) were used to prepare SNC photoanodes. The photocurrent - voltage characteristics showed that the incorporation of an LZO insulating layer in an SNC photoanode increased the conversion efficiency of DSSCs. This was due to an increase in the surface area, charge injection, and charge collection, and the minimization of the recombination rate of photoanodes. Electrochemical impedance spectroscopy (EIS) results showed lower series resistance, charge injection resistance, and shorter lifetimes for DSSCs based on an SNC photoanode with an LZO insulating layer. The open circuit voltage and fill factor of the DSSCs based on SNC photoanodes with an LZO insulating layer significantly increased. The DSSC based on a SNC photoanode with a SNC:SNF weight ratio of 1:1 had a high current density of 4.73 mA/cm 2 , open circuit voltage of 630 mV, fill factor of 69%, and efficiency of 2.06%.

Suggested Citation

  • I-Ming Hung & Ripon Bhattacharjee, 2016. "Effect of Photoanode Design on the Photoelectrochemical Performance of Dye-Sensitized Solar Cells Based on SnO 2 Nanocomposite," Energies, MDPI, vol. 9(8), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:8:p:641-:d:75931
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    References listed on IDEAS

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    1. Federico Bella & Simone Galliano & Claudio Gerbaldi & Guido Viscardi, 2016. "Cobalt-Based Electrolytes for Dye-Sensitized Solar Cells: Recent Advances towards Stable Devices," Energies, MDPI, vol. 9(5), pages 1-22, May.
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    Cited by:

    1. Ming Chen & Xuandong Liu & Chengjun Liang & Yi Zhao & Hao Tang, 2019. "Study on Surface Charge Accumulation Characteristics of Resin Impregnated Paper Wall Bushing Core Under Positive DC Voltage," Energies, MDPI, vol. 12(23), pages 1-14, November.
    2. Zainal Arifin & Suyitno Suyitno & Syamsul Hadi & Bayu Sutanto, 2018. "Improved Performance of Dye-Sensitized Solar Cells with TiO 2 Nanoparticles/Zn-Doped TiO 2 Hollow Fiber Photoanodes," Energies, MDPI, vol. 11(11), pages 1-11, October.

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