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<p>Improving conversion efficiency is a critical goal in solar cell development. This work employs Mie theory-based simulations to design plasmonic nanoparticles for enhanced light trapping. The light-scattering properties of silver (Ag) and gold (Au) nanoparticles, alongside their Ag/SiO₂ and Au/SiO₂ core-shell counterparts are systematically investigated to establish design rules for solar cell application. The core findings reveal that an optimal size exists for bare nanoparticles (~ 35&#xa0;nm for Ag, ~ 100&#xa0;nm for Au) to maximize scattering and solar cell photocurrent. Furthermore, a critical trade-off for device integration is revealed: while an ultrathin dielectric shell (e.g., ~ 1&#xa0;nm for Au/SiO₂) slightly reduces scattering efficiency, it plays a crucial role in preventing charge recombination, thereby unlocking higher net power conversion efficiency. This study provides a practical design framework, enabling the pre-screening of nanoparticle parameters to streamline the development of high-efficiency plasmon-enhanced solar cells.</p>

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Simulation-based study of plasmonic noble metal and core–shell nanoparticles for solar cell efficiency

  • 期刊论文

  • 发表日期：

    2026年2月21日

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  • Hassan Mahmoodi Esfanddarani,
  • Mrutyunjay Panigrahi

摘要

Improving conversion efficiency is a critical goal in solar cell development. This work employs Mie theory-based simulations to design plasmonic nanoparticles for enhanced light trapping. The light-scattering properties of silver (Ag) and gold (Au) nanoparticles, alongside their Ag/SiO₂ and Au/SiO₂ core-shell counterparts are systematically investigated to establish design rules for solar cell application. The core findings reveal that an optimal size exists for bare nanoparticles (~ 35 nm for Ag, ~ 100 nm for Au) to maximize scattering and solar cell photocurrent. Furthermore, a critical trade-off for device integration is revealed: while an ultrathin dielectric shell (e.g., ~ 1 nm for Au/SiO₂) slightly reduces scattering efficiency, it plays a crucial role in preventing charge recombination, thereby unlocking higher net power conversion efficiency. This study provides a practical design framework, enabling the pre-screening of nanoparticle parameters to streamline the development of high-efficiency plasmon-enhanced solar cells.