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<p>The performance of polycrystalline silicon solar cells is limited by light reflection, surface contamination, and thermal losses. This has led the industry to focus on researching, developing, and applying new nanocoatings to improve photovoltaic efficiency. This study examines the photovoltaic properties of polycrystalline silicon solar cells by depositing varying concentrations of Titanium dioxide (Tio₂) nanoparticles within a Polymethyl Methacrylate (PMMA) matrix. The materials and methods involve preparing Tio₂/pmma nanocomposites by dispersing Tio₂ nanoparticles into acetone with a colemanite suspension in a PMMA solution. The nanocomposite suspensions are then applied to the surface of the solar cells and allowed to dry. This research aims to evaluate how different Tio₂ loadings affect morphology, optical properties, and electrical performance to optimise efficiency across all Tio₂-based solar cells. SEM analysis confirmed the dispersion of Tio₂ nanoparticles within the PMMA matrix. Lower concentrations of Tio₂ exhibited higher light absorption, consistent with UV-Vis spectroscopy results. The most efficient solar cells containing Tio₂, with a 0.0125&#xa0;g added layer, achieved an efficiency of 14.4%, attributed to improved light absorption and charge transport. Nonetheless, nanoparticles tend to agglomerate, and higher concentrations of Tio₂ resulted in decreased performance, as evidenced by reduced photocatalytic activity. Properly optimising the concentration of titanium dioxide (TiO₂) is essential for enhancing the efficiency of solar cells.</p>

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The effect of titanium dioxide (TiO₂) nanoparticle concentration on the performance of polycrystalline silicon solar cells

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月3日

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  • Marwa Khaleel Rashid,
  • Huda jumaah Mohammed,
  • Hayder Mahmood Hameed,
  • Mohammed Waleed Muayad,
  • Adnan Mohammed Hussien,
  • Afrah Turki Awad,
  • Mohammed Alharbi

摘要

The performance of polycrystalline silicon solar cells is limited by light reflection, surface contamination, and thermal losses. This has led the industry to focus on researching, developing, and applying new nanocoatings to improve photovoltaic efficiency. This study examines the photovoltaic properties of polycrystalline silicon solar cells by depositing varying concentrations of Titanium dioxide (Tio₂) nanoparticles within a Polymethyl Methacrylate (PMMA) matrix. The materials and methods involve preparing Tio₂/pmma nanocomposites by dispersing Tio₂ nanoparticles into acetone with a colemanite suspension in a PMMA solution. The nanocomposite suspensions are then applied to the surface of the solar cells and allowed to dry. This research aims to evaluate how different Tio₂ loadings affect morphology, optical properties, and electrical performance to optimise efficiency across all Tio₂-based solar cells. SEM analysis confirmed the dispersion of Tio₂ nanoparticles within the PMMA matrix. Lower concentrations of Tio₂ exhibited higher light absorption, consistent with UV-Vis spectroscopy results. The most efficient solar cells containing Tio₂, with a 0.0125 g added layer, achieved an efficiency of 14.4%, attributed to improved light absorption and charge transport. Nonetheless, nanoparticles tend to agglomerate, and higher concentrations of Tio₂ resulted in decreased performance, as evidenced by reduced photocatalytic activity. Properly optimising the concentration of titanium dioxide (TiO₂) is essential for enhancing the efficiency of solar cells.