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<p>Enhancing the photovoltaic conversion efficiency of solar cells to achieve grid parity has become the ultimate goal driving the industry's continuous development. This study builds upon traditional texturing solutions by precisely controlling the types, concentrations, reaction temperature, and duration of introduced reagents. Innovatively, we incorporated two functional reagents—fatty alcohol ether phosphate salt(A3)and polyethyleneimine(B1)—to develop an advanced texturing additive. This product not only enables precise control over the size of pyramid-shaped textures but also effectively addresses the industry-wide issue of excessive alkali consumption during the texturing process. The final texturing solution, composed of "traditional formula + 0.01% fatty alcohol ether phosphate salt + 0.01% polyethyleneimine," with a concentration of 0.2%, reacted at 83&#xa0;°C for 420&#xa0;s under 0.6% alkali concentration, resulting in an etching amount of 0.33&#xa0;g, a texture size of 1.5–2&#xa0;μm, and a reflectivity of 9.7 ± 0.2%. Mass production data demonstrated an efficiency of 24.6%. Compared to the traditional base formula, the novel texturing formula proposed in this study ensures precise control over pyramid size while significantly reducing production costs. Coupled with its exceptional stability, this solution offers the industry a more efficient and economical approach.</p>

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Research on a new precision, cost-effective, and high-efficiency texturing additive for monocrystalline silicon

  • 期刊论文

  • 发表日期：

    2026年2月28日

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  • Pengwei Zhang,
  • Pingping Feng,
  • Shenghua Ma,
  • Danjiang Tang,
  • Lihui Cao

摘要

Enhancing the photovoltaic conversion efficiency of solar cells to achieve grid parity has become the ultimate goal driving the industry's continuous development. This study builds upon traditional texturing solutions by precisely controlling the types, concentrations, reaction temperature, and duration of introduced reagents. Innovatively, we incorporated two functional reagents—fatty alcohol ether phosphate salt(A3)and polyethyleneimine(B1)—to develop an advanced texturing additive. This product not only enables precise control over the size of pyramid-shaped textures but also effectively addresses the industry-wide issue of excessive alkali consumption during the texturing process. The final texturing solution, composed of "traditional formula + 0.01% fatty alcohol ether phosphate salt + 0.01% polyethyleneimine," with a concentration of 0.2%, reacted at 83 °C for 420 s under 0.6% alkali concentration, resulting in an etching amount of 0.33 g, a texture size of 1.5–2 μm, and a reflectivity of 9.7 ± 0.2%. Mass production data demonstrated an efficiency of 24.6%. Compared to the traditional base formula, the novel texturing formula proposed in this study ensures precise control over pyramid size while significantly reducing production costs. Coupled with its exceptional stability, this solution offers the industry a more efficient and economical approach.