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<p>This study comprehensively investigates the influence of various parameters on the texturing of mono-crystalline DWS wafers. These parameters include the composition of the texturing solution, bath temperature, determination of bath life time (the number of samples per bath run), pre- and post-texturing treatments, the sequence of adding or replenishing solution components, stirring methods, and the chemical concentrations of each constituent. This study examines the effect of these parameter on weighted area reflectance (WAR) {wavelength range: 400–100&#xa0;nm} which shall be kept minimum to achieve higher degree of absorption on the Silicon wafer surface. This study has achieved an approximately 11% WAR along with a uniform pyramid structure throughout the wafer using Quantum Efficiency setup. Post Texturisation, the wafers were diffused, Single side etched, ARC coated by Plasma Enhanced Chemical Vapor Deposition (PECVD), and metallization to produce industrial-scale M4 size mono-facial mono PERC solar cells. This optimized process has led to the achievement of a cell efficiency of 22.07%.</p>

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Optimization of Texturisation Parameters for Enhanced Efficiency of PERC Type Solar Cell Produced Using Diamond Wire Saw Wafers

  • 期刊论文

  • 发表日期：

    2025年1月12日

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  • Devdutt Singh,
  • Bharat K. Pant,
  • Vinayan Bhardwaj,
  • Sujit Pillai

摘要

This study comprehensively investigates the influence of various parameters on the texturing of mono-crystalline DWS wafers. These parameters include the composition of the texturing solution, bath temperature, determination of bath life time (the number of samples per bath run), pre- and post-texturing treatments, the sequence of adding or replenishing solution components, stirring methods, and the chemical concentrations of each constituent. This study examines the effect of these parameter on weighted area reflectance (WAR) {wavelength range: 400–100 nm} which shall be kept minimum to achieve higher degree of absorption on the Silicon wafer surface. This study has achieved an approximately 11% WAR along with a uniform pyramid structure throughout the wafer using Quantum Efficiency setup. Post Texturisation, the wafers were diffused, Single side etched, ARC coated by Plasma Enhanced Chemical Vapor Deposition (PECVD), and metallization to produce industrial-scale M4 size mono-facial mono PERC solar cells. This optimized process has led to the achievement of a cell efficiency of 22.07%.