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<p>FDTD simulations were performed to study plasmonic absorption enhancement effects of core-shell type nanowire in photovoltaic material. It was possible to tune plasmon resonance wavelengths towards the longer wavelengths, which are absorbed weakly in Copper Zinc Tin Sulfide (CZTS), by adjusting the shell thicknesses. Fortuitously, the absorption enhancement effect in CZTS was found to be significantly larger than the undesirable absorption loss in the metal shell of the nanowire. Smaller absorption loss was observed in the metal shell of nanowire with lower dielectric constant and smaller core diameter. Our results indicate that plasmonic absorption enhancement can be an attractive option for enhancing performance of thin film type CZTS photovoltaic devices.</p>

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Plasmonic absorption enhancement effect of core-shell type nanowires in CZTS

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • Mohammed Shahriar Sabuktagin,
  • Md. Ibrahim Ahmed,
  • Ihtesham Ibn Malek,
  • Mohammad Junaebur Rashid

摘要

FDTD simulations were performed to study plasmonic absorption enhancement effects of core-shell type nanowire in photovoltaic material. It was possible to tune plasmon resonance wavelengths towards the longer wavelengths, which are absorbed weakly in Copper Zinc Tin Sulfide (CZTS), by adjusting the shell thicknesses. Fortuitously, the absorption enhancement effect in CZTS was found to be significantly larger than the undesirable absorption loss in the metal shell of the nanowire. Smaller absorption loss was observed in the metal shell of nanowire with lower dielectric constant and smaller core diameter. Our results indicate that plasmonic absorption enhancement can be an attractive option for enhancing performance of thin film type CZTS photovoltaic devices.