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<p>This study aims to enhance the efficiency of lead-free double perovskite solar cells (DPSC) using Cs<sub>2</sub>AgBiBr<sub>6</sub> as the active absorber layer and CuSCN as HTL (Hole Transport Layer). The double perovskite Cs<sub>2</sub>AgBiBr<sub>6</sub> is a promising alternative to lead-based perovskites due to its low toxicity and improved stability, but its relatively low efficiency presents a significant challenge for photovoltaic applications. To address this, numerical simulations were conducted using SCAPS-1D to investigate the impact of integrating CuSCN as HTL, which is known for its high conductivity, excellent hole transport properties, and good energy alignment with perovskite materials. The proposed solar cell structure FTO/SnO<sub>2</sub>/ Cs<sub>2</sub>AgBiBr<sub>6</sub>/CuSCN/Au obtained an improved efficiency of 11.51%, which is an improvement of the previously published work. This study provides a pathway for the development of efficient, stable, and environmentally friendly perovskite solar cells, contributing to the advancement of sustainable photovoltaic technologies.</p>

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Photovoltaic Performance of Lead-Free Cs2AgBiBr6 Solar Cell with Low Cost CuSCN as HTL from SCAPS Simulation

  • 期刊论文

  • 发表日期：

    2025年7月13日

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  • Pratap Kumar Dakua,
  • Usen Dudekula,
  • Y. Venkata Lakshmaiah,
  • Prakash Kanjariya,
  • T. Ramachandran,
  • Adam Amril Jaharadak,
  • Rahul Singh,
  • K. P. V. Krishna Varma,
  • Sahil Sharma,
  • Jashandeep Singh,
  • Sagar Bhattarai

摘要

This study aims to enhance the efficiency of lead-free double perovskite solar cells (DPSC) using Cs2AgBiBr6 as the active absorber layer and CuSCN as HTL (Hole Transport Layer). The double perovskite Cs2AgBiBr6 is a promising alternative to lead-based perovskites due to its low toxicity and improved stability, but its relatively low efficiency presents a significant challenge for photovoltaic applications. To address this, numerical simulations were conducted using SCAPS-1D to investigate the impact of integrating CuSCN as HTL, which is known for its high conductivity, excellent hole transport properties, and good energy alignment with perovskite materials. The proposed solar cell structure FTO/SnO2/ Cs2AgBiBr6/CuSCN/Au obtained an improved efficiency of 11.51%, which is an improvement of the previously published work. This study provides a pathway for the development of efficient, stable, and environmentally friendly perovskite solar cells, contributing to the advancement of sustainable photovoltaic technologies.