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Organic Dyes in Dye-Sensitized Solar Cells Featuring Back Reflector

Author

Listed:
  • Agata Zdyb

    (Department of Renewable Energy Engineering, Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland)

  • Ewelina Krawczak

    (Department of Renewable Energy Engineering, Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland)

Abstract

Dye-sensitized solar cells (DSSCs) were fabricated using a photoelectrode covered by a porous layer of titanium dioxide, platinum counter electrode, iodide/triiodide electrolyte and three different dyes: phenylfluorone (PF), pyrocatechol violet (PCV) and alizarin (AL). After the adsorption of the dyes on the mesoporous TiO 2 layer, the measurement of absorption spectra of all the tested dyes revealed a significant broadening of the absorption range. The positions of highest occupied molecular orbital (HOMO) and lowest occupied molecular orbital (LUMO) levels of dye molecules were determined, indicating that all three dyes are good candidates for light harvesters in DSSCs. The cells were tested under simulated solar light, and their working parameters were determined. The results showed that the implementation of the back reflector layer made of BaSO 4 provided an improvement in the cell efficiency of up to 17.9% for phenylfluorone, 60% for pyrocatechol violet and 21.4% for alizarin dye.

Suggested Citation

  • Agata Zdyb & Ewelina Krawczak, 2021. "Organic Dyes in Dye-Sensitized Solar Cells Featuring Back Reflector," Energies, MDPI, vol. 14(17), pages 1-18, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:17:p:5529-:d:629077
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    References listed on IDEAS

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    1. Richhariya, Geetam & Kumar, Anil & Tekasakul, Perapong & Gupta, Bhupendra, 2017. "Natural dyes for dye sensitized solar cell: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 705-718.
    2. Mohammadian-Sarcheshmeh, Hamideh & Arazi, Rezvan & Mazloum-Ardakani, Mohammad, 2020. "Application of bifunctional photoanode materials in DSSCs: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).
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