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This work investigates a PCDTBT:PCBM-based organic solar cell (OSC) designed and implemented in the Silvaco TCAD environment with the aim of performance improvement, cost reduction, and better cell stability. As the front electrode, the cheaper p-doped graphene (p-graphene) is used instead of a costlier indium tin oxide (ITO) to reduce the cost and promote better light transmission to the absorber layer. As the hole transport layer (HTL), graphene oxide (Gro) is employed instead of conventional PEDOT:PSS to further reduce the cost and improve cell stability. The thicknesses of the absorber and the hole transport layers have been optimized for higher power conversion efficiency (PCE). The PCE is further enhanced by employing an appropriate anti-reflection coating (ARC) material. Simulation results show that the optimized, cost-effective, and more stable OSC implemented in this work achieves record PCEs of 9.59% if no ARC is used, and 12.02% if an appropriate ARC material is used.

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TCAD Implementation of a Cost-Effective, Stable, and Highly-Efficient PCDTBT:PCBM-Based Organic Solar Cell

  • 会议论文

  • 发表日期：

    2025年

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  • Md. Nahidul Islam,
  • Md. Hojaifa Daiyan Chowdhury,
  • Md. Rashique Hamjah Chowdhury,
  • Muhammad Johirul Islam,
  • Md. Iqbal Bahar Chowdhury

摘要

This work investigates a PCDTBT:PCBM-based organic solar cell (OSC) designed and implemented in the Silvaco TCAD environment with the aim of performance improvement, cost reduction, and better cell stability. As the front electrode, the cheaper p-doped graphene (p-graphene) is used instead of a costlier indium tin oxide (ITO) to reduce the cost and promote better light transmission to the absorber layer. As the hole transport layer (HTL), graphene oxide (Gro) is employed instead of conventional PEDOT:PSS to further reduce the cost and improve cell stability. The thicknesses of the absorber and the hole transport layers have been optimized for higher power conversion efficiency (PCE). The PCE is further enhanced by employing an appropriate anti-reflection coating (ARC) material. Simulation results show that the optimized, cost-effective, and more stable OSC implemented in this work achieves record PCEs of 9.59% if no ARC is used, and 12.02% if an appropriate ARC material is used.