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<p>This article presents a simulation-based analysis of thin film solar cells made of CZTSSe that incorporate a CIGSe as the bottom absorber layer, with performance analyzed through the SCAPS-1D program. Key factors, including active layer thickness, acceptor density, resistance, and working temperature, were adjusted to enhance performance. Significant improvements were observed: open-circuit voltage (V<sub>OC</sub>) increased from 0.7136 to 1.27&#xa0;V, short-circuit current density (J<sub>SC</sub>) rose from 42.63 to 46.62&#xa0;mA/cm<sup>2</sup>, fill factor (FF) improved from 74.25 to 76.57%, and efficiency (η) surged from 22.59 to 45.40%. This novel implementation of a double absorber structure significantly reduces recombination losses, leading to improved charge carrier collection and enhanced solar cell efficiency. The study presents a simulation of ultra-thin CZTSSe and CIGSe-based solar cells, highlighting their potential for the development of low-cost, high-efficiency photovoltaic devices.</p>

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High-efficiency CZTSSe/CIGSe ultra-thin structures for next-generation solar cells with 45.40% efficiency

  • 期刊论文

  • 发表日期：

    2025年6月7日

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  • Lhoussayne Et-taya,
  • Abdelmajid El Khalfi,
  • Mohamed Hamdaoui,
  • Abderrahman El Boukili,
  • Lahoucine ELMaimouni,
  • Najim Mansour,
  • Md Ferdous Rahman,
  • Abdellah Benami

摘要

This article presents a simulation-based analysis of thin film solar cells made of CZTSSe that incorporate a CIGSe as the bottom absorber layer, with performance analyzed through the SCAPS-1D program. Key factors, including active layer thickness, acceptor density, resistance, and working temperature, were adjusted to enhance performance. Significant improvements were observed: open-circuit voltage (VOC) increased from 0.7136 to 1.27 V, short-circuit current density (JSC) rose from 42.63 to 46.62 mA/cm2, fill factor (FF) improved from 74.25 to 76.57%, and efficiency (η) surged from 22.59 to 45.40%. This novel implementation of a double absorber structure significantly reduces recombination losses, leading to improved charge carrier collection and enhanced solar cell efficiency. The study presents a simulation of ultra-thin CZTSSe and CIGSe-based solar cells, highlighting their potential for the development of low-cost, high-efficiency photovoltaic devices.