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<p>The development of a photoanode having an optimized 1D/3D nanostructure and a novel ‘slit method’ for electrolyte filling used in a dye-sensitized solar cell was described in this article. The photoanode was prepared by synthesizing the 1D/3D TiO<sub>2</sub> nanorod network via a single-step hydrothermal process. Furthermore, the analytically optimized structure of 1D/3D nanorod had been decorated by TiO<sub>2</sub> (P25) nanoparticles to customize the surface morphology. The 1D/3D structure improved the light scattering ability and ensured fast electron transport and reduced charge recombination. Moreover, the TiO<sub>2</sub> nanoparticles enhanced the dye absorption ability by providing a larger specific surface area. Afterward, selected TiO<sub>2</sub> films with both 1D/3D TiO<sub>2</sub> nanorods network and nanoparticles decorated 1D/3D TiO<sub>2</sub> nanorod network were explored as photoanodes to fabricate dye-sensitized solar cells. Finally, a unique ‘slit method’ for electrolyte injection was developed to maximize the active surface of the counter electrode. The benefits of anatase TiO<sub>2</sub> nanoparticle decoration and rutile 1D/3D TiO<sub>2</sub> nanostructures were evident in the efficacy of the fabricated DSSC. A notable photon conversion efficiency of 3.11% was found which was an increment of 43.40% as the nanoparticle layer was introduced.</p>

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Performance study of dye-sensitized solar cells: a novel ‘slit method’ for electrolyte filling and tailoring 1D/3D TiO2 nanorod networks

  • 期刊论文

  • 发表日期：

    2025年6月17日

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  • Ayesha Siddika,
  • Munira Sultana,
  • Samia Tabassum,
  • M. S. Bashar,
  • Suravi Islam,
  • Sadia Afrin,
  • Nilufa Yeasmin

摘要

The development of a photoanode having an optimized 1D/3D nanostructure and a novel ‘slit method’ for electrolyte filling used in a dye-sensitized solar cell was described in this article. The photoanode was prepared by synthesizing the 1D/3D TiO2 nanorod network via a single-step hydrothermal process. Furthermore, the analytically optimized structure of 1D/3D nanorod had been decorated by TiO2 (P25) nanoparticles to customize the surface morphology. The 1D/3D structure improved the light scattering ability and ensured fast electron transport and reduced charge recombination. Moreover, the TiO2 nanoparticles enhanced the dye absorption ability by providing a larger specific surface area. Afterward, selected TiO2 films with both 1D/3D TiO2 nanorods network and nanoparticles decorated 1D/3D TiO2 nanorod network were explored as photoanodes to fabricate dye-sensitized solar cells. Finally, a unique ‘slit method’ for electrolyte injection was developed to maximize the active surface of the counter electrode. The benefits of anatase TiO2 nanoparticle decoration and rutile 1D/3D TiO2 nanostructures were evident in the efficacy of the fabricated DSSC. A notable photon conversion efficiency of 3.11% was found which was an increment of 43.40% as the nanoparticle layer was introduced.