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<p>Solar cells are pivotal for harvesting renewable energy in order to build a more environmentally friendly and sustainable energy landscape. There is a pressing need for more research to advance renewable energy technology, as the use of environmentally benign materials in solar cells has not kept up with that of its conventional counterparts. This study looked at using inexpensive, eco-friendly plants and flowers such as Tecoma stans, Tridax procumbens, Nerium oleander, and Delonix Regia as natural colours as a sensitizer. Alongside with the natural dyes, a green approach is adopted by encompassing the TiO<sub>2</sub> photoanode, I<sup>−</sup>/I<sub>3</sub><sup>−</sup> redox couple electrolyte and electrode made with graphite pencils. Consequently, the best optimized sensitizer was anthocyanin pigmented Delonix Regia with 0.897% of PCE. This work shown that DSSCs can be effectively combined with natural sensitizers made from readily available plant materials, which could lead to a wider range of solar cell applications.</p>

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Exciton generation using sensitizers derived from floral and foliar sources for dye sensitized solar cells

  • 期刊论文

  • 发表日期：

    2025年4月16日

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  • Vishnupriya Vijendran,
  • Subaharini Ramalingam,
  • Janarthanan Balasundaram,
  • A. Kumar,
  • Mohammad Shahzad Samdani,
  • R. Priya,
  • M. Saravanakumar

摘要

Solar cells are pivotal for harvesting renewable energy in order to build a more environmentally friendly and sustainable energy landscape. There is a pressing need for more research to advance renewable energy technology, as the use of environmentally benign materials in solar cells has not kept up with that of its conventional counterparts. This study looked at using inexpensive, eco-friendly plants and flowers such as Tecoma stans, Tridax procumbens, Nerium oleander, and Delonix Regia as natural colours as a sensitizer. Alongside with the natural dyes, a green approach is adopted by encompassing the TiO2 photoanode, I−/I3− redox couple electrolyte and electrode made with graphite pencils. Consequently, the best optimized sensitizer was anthocyanin pigmented Delonix Regia with 0.897% of PCE. This work shown that DSSCs can be effectively combined with natural sensitizers made from readily available plant materials, which could lead to a wider range of solar cell applications.