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<p>Fabrication of Hybrid Solar Cells (HSCs) using Nano materials, has recently attracted huge attention due to their remarkable characteristics, high optical performance, high conductivity, high carrier mobility, band gap values and optimised function of work. In this study, nanocrystalline silicon (NC-Si) has been synthesised via magnesiothermic reduction reaction from rice husk ash (RHA). XPS results exhibits strong 2p (Si) peak results that the larger amount of silicon at 99&#xa0;eV, a weak peak at 103.5&#xa0;eV. BET and BJH analyses of NC-Si exhibits the value of 269.4 m<sup>2</sup> g<sup>−1</sup> and 0.274 cm<sup>3</sup> g<sup>−1</sup>, below 10&#xa0;nm exposing predominance of pores. This naturally much ample and low economic RHA is used to produce SiO<sub>2</sub> as an efficient raw material to prepare NC-Si. Fabrication of effective HSCs with active layer material is poly(3-hexylthiophene) (P3HT): NC-Si. A study on the effect of four different poly(methyl methacrylate) (PMMA) concentrations (0, 1, 4, and 12 wt%) on the optical properties, topography, and solar cell performance of P3HT: NC-Si HSCs was fabricated using photoluminescence (PL) spectroscopy, atomic force microscopy (AFM), and current density-voltage (J-V) characterisation using simulated AM 1.5G illumination. Effective light absorption is observed in 4 and 12wt.% films also promote the formation of smooth layer with reduced defects. The results discussed relationships among power conversion efficiency (PCE), roughness, and concentrations of PMMA in active layers. The PL absorbance of 4 and 12 wt% of the PMMA-blended P3HT: NC-Si active layer exhibits higher intensity and also lower roughness topography of these two concentrations. The highest PCE of the fabricated HSCs is 3.55% PCE by 4 wt% of PMMA in P3HT: NC-Si active layer and this seems to be better than other reported HSCs.</p>

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PMMA-Enhanced Electron Extraction in Nanocrystalline Silicon: P3HT Hybrid Solar Cells

  • 期刊论文

  • 发表日期：

    2025年4月3日

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  • Murugan Vinoth,
  • Palanisamy Manivasakan,
  • Palanisamy Siva,
  • Venkatachalam Rajendran

摘要

Fabrication of Hybrid Solar Cells (HSCs) using Nano materials, has recently attracted huge attention due to their remarkable characteristics, high optical performance, high conductivity, high carrier mobility, band gap values and optimised function of work. In this study, nanocrystalline silicon (NC-Si) has been synthesised via magnesiothermic reduction reaction from rice husk ash (RHA). XPS results exhibits strong 2p (Si) peak results that the larger amount of silicon at 99 eV, a weak peak at 103.5 eV. BET and BJH analyses of NC-Si exhibits the value of 269.4 m2 g−1 and 0.274 cm3 g−1, below 10 nm exposing predominance of pores. This naturally much ample and low economic RHA is used to produce SiO2 as an efficient raw material to prepare NC-Si. Fabrication of effective HSCs with active layer material is poly(3-hexylthiophene) (P3HT): NC-Si. A study on the effect of four different poly(methyl methacrylate) (PMMA) concentrations (0, 1, 4, and 12 wt%) on the optical properties, topography, and solar cell performance of P3HT: NC-Si HSCs was fabricated using photoluminescence (PL) spectroscopy, atomic force microscopy (AFM), and current density-voltage (J-V) characterisation using simulated AM 1.5G illumination. Effective light absorption is observed in 4 and 12wt.% films also promote the formation of smooth layer with reduced defects. The results discussed relationships among power conversion efficiency (PCE), roughness, and concentrations of PMMA in active layers. The PL absorbance of 4 and 12 wt% of the PMMA-blended P3HT: NC-Si active layer exhibits higher intensity and also lower roughness topography of these two concentrations. The highest PCE of the fabricated HSCs is 3.55% PCE by 4 wt% of PMMA in P3HT: NC-Si active layer and this seems to be better than other reported HSCs.