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Ruthenium (Ru) Doped Titanium Dioxide (P25) Electrode for Dye Sensitized Solar Cells

Author

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  • Tharmakularasa Rajaramanan

    (Faculty of Engineering and Science, Western Norway University of Applied Sciences, P.O. Box 7030, 5020 Bergen, Norway
    Clean Energy Research Laboratory, Department of Physics, University of Jaffna, Jaffna 40000, Sri Lanka
    Department of Chemistry, University of Jaffna, Jaffna 40000, Sri Lanka)

  • Muthukumarasamy Natarajan

    (Department of Physics, Coimbatore Institute of Technology, Coimbatore, Tamil Nadu 641014, India)

  • Punniamoorthy Ravirajan

    (Clean Energy Research Laboratory, Department of Physics, University of Jaffna, Jaffna 40000, Sri Lanka)

  • Meena Senthilnanthanan

    (Department of Chemistry, University of Jaffna, Jaffna 40000, Sri Lanka)

  • Dhayalan Velauthapillai

    (Faculty of Engineering and Science, Western Norway University of Applied Sciences, P.O. Box 7030, 5020 Bergen, Norway)

Abstract

In this study, P25-titanium dioxide (TiO 2 ) was doped with ruthenium (Ru) by systematically varying the Ru content at 0.15, 0.30, 0.45 and 0.6 mol%. The synthesized Ru-doped TiO 2 nanomaterials have been characterized by X-ray diffraction (XRD), Raman spectroscopy, energy-dispersive X-ray (EDX) analysis, UV-visible (UV–Vis) spectroscopy, and electrochemical impedance (EIS) spectroscopy. The XRD patterns of undoped and Ru-doped TiO 2 nanomaterials confirm the presence of mixed anatase and rutile phases of TiO 2 while EDX spectrum confirms the presence of Ti, O and Ru. Further, UV-visible absorption spectra of doped TiO 2 nanomaterial reveal a slight red shift on Ru-doping. The short circuit current density (J SC ) of the cells fabricated using the Ru-doped TiO 2 photoanode was found to be dependent on the amount of Ru present in TiO 2 . Optimized cells with 0.3 mol% Ru-doped TiO 2 electrodes showed efficiency which is 20% more than the efficiency of the control cell (η = 5.8%) under stimulated illumination (100 mWcm −2 , 1 sun) with AM 1.5 filter. The increase in J SC resulted from the reduced rate of recombination upon doping of Ru and this was confirmed by EIS analysis.

Suggested Citation

  • Tharmakularasa Rajaramanan & Muthukumarasamy Natarajan & Punniamoorthy Ravirajan & Meena Senthilnanthanan & Dhayalan Velauthapillai, 2020. "Ruthenium (Ru) Doped Titanium Dioxide (P25) Electrode for Dye Sensitized Solar Cells," Energies, MDPI, vol. 13(7), pages 1-12, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1532-:d:336607
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    References listed on IDEAS

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    1. Senthil, T.S. & Muthukumarasamy, N. & Velauthapillai, Dhayalan & Agilan, S. & Thambidurai, M. & Balasundaraprabhu, R., 2011. "Natural dye (cyanidin 3-O-glucoside) sensitized nanocrystalline TiO2 solar cell fabricated using liquid electrolyte/quasi-solid-state polymer electrolyte," Renewable Energy, Elsevier, vol. 36(9), pages 2484-2488.
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    Cited by:

    1. A Reum Lee & Jae-Yup Kim, 2020. "Highly Ordered TiO 2 Nanotube Electrodes for Efficient Quasi-Solid-State Dye-Sensitized Solar Cells," Energies, MDPI, vol. 13(22), pages 1-10, November.

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    More about this item

    Keywords

    dye sensitized solar cells; Ru-doped TiO 2 ; P25-TiO 2;
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