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<p>In order to analyze the efficiency loss of Passivated Emitter Rear Contact (PERC) cells at 23.2%, specialized samples were manufactured on the same production line to conduct a comprehensive analysis of optical, recombination, and resistance losses. The findings were then integrated into Quokka2 simulation software to model the cell's performance. The simulated results closely matched the experimental electrical performance data. The analysis revealed that optical losses were primarily attributed to near-infrared (NIR) parasitic absorption, front surface escape, and gridline shading. The most significant recombination losses were found in metal recombination and the laser doping region. Single-variable simulations indicated that optimizing the diffusion region recombination had the most substantial impact on improving cell efficiency. The main focus is to provide, from an industrial production perspective, a correct, simple, fast, and easy-to-operate method for analyzing efficiency losses of solar cells.</p>

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Efficiency loss analysis and simulation of 23.2% efficiency PERC cell

  • 期刊论文

  • 发表日期：

    2025年3月21日

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  • Dichun Yuan,
  • Junhu Cui,
  • Jianming Ding,
  • Chonggui Zhong

摘要

In order to analyze the efficiency loss of Passivated Emitter Rear Contact (PERC) cells at 23.2%, specialized samples were manufactured on the same production line to conduct a comprehensive analysis of optical, recombination, and resistance losses. The findings were then integrated into Quokka2 simulation software to model the cell's performance. The simulated results closely matched the experimental electrical performance data. The analysis revealed that optical losses were primarily attributed to near-infrared (NIR) parasitic absorption, front surface escape, and gridline shading. The most significant recombination losses were found in metal recombination and the laser doping region. Single-variable simulations indicated that optimizing the diffusion region recombination had the most substantial impact on improving cell efficiency. The main focus is to provide, from an industrial production perspective, a correct, simple, fast, and easy-to-operate method for analyzing efficiency losses of solar cells.