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Abstract <p>For the first time, natural dye was extracted using ethanol from the fruits of Pouteria campechiana and used to soak the Nb/Nd co-doped TiO<sub>2</sub> coated FTO substrate which served as photoanode of dye sensitized solar cell. X-Ray diffraction, photoluminscence and Raman spectroscopy were used to analyse the structural, vibrational and emission characteristics of the pure and Nb/Nd co-doped TiO<sub>2</sub> samples. The sensitizer soaked Nb/Nd co-doped TiO<sub>2</sub> over FTO substrate was sandwiched with the graphite coated FTO incorporated with the redox couple of iodine/triiodide (I<sup>–</sup>/I<sub>3</sub><sup>–</sup>) occupying the layer between the photoanode and counter electrode to fabricate the solar cell architecture as FTO/Nb/Nd-TiO<sub>2</sub>/dye/I<sup>–</sup>/I<sub>3</sub><sup>–</sup>/graphite-TiO<sub>2</sub>/FTO. JV characteristic study was carried out for the solar cells with and without Nb/Nd co-doped TiO<sub>2</sub> with the sensitizer and it was found that, the solar cell with Nb/Nd co-doped TiO<sub>2</sub> produced an efficiency of 0.83% with open circuit voltage and short circuit current density of 0.67508 V and 2.3656 mA/cm<sup>2</sup>.</p>

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Enhancement of Exciton Generation and Sustainability in Dye Sensitized Solar Cell with Photoanode of Nb/Nd Co-Doped TiO2 Incorporated with Natural Dye Extracted from Pouteria campechiana Fruits

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • T. K. Sudheer,
  • P. A. Ahsina,
  • V. G. Prabitha,
  • Janarthanan Balasundaram,
  • A. Dinesh,
  • Lalitha Gnanasekaran,
  • Manikandan Ayyar,
  • V. Mohanavel,
  • S. Santhoshkumar,
  • Madhappan Santhamoorthy

摘要

Abstract

For the first time, natural dye was extracted using ethanol from the fruits of Pouteria campechiana and used to soak the Nb/Nd co-doped TiO2 coated FTO substrate which served as photoanode of dye sensitized solar cell. X-Ray diffraction, photoluminscence and Raman spectroscopy were used to analyse the structural, vibrational and emission characteristics of the pure and Nb/Nd co-doped TiO2 samples. The sensitizer soaked Nb/Nd co-doped TiO2 over FTO substrate was sandwiched with the graphite coated FTO incorporated with the redox couple of iodine/triiodide (I–/I3–) occupying the layer between the photoanode and counter electrode to fabricate the solar cell architecture as FTO/Nb/Nd-TiO2/dye/I–/I3–/graphite-TiO2/FTO. JV characteristic study was carried out for the solar cells with and without Nb/Nd co-doped TiO2 with the sensitizer and it was found that, the solar cell with Nb/Nd co-doped TiO2 produced an efficiency of 0.83% with open circuit voltage and short circuit current density of 0.67508 V and 2.3656 mA/cm2.