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<p>Perovskite solar cells (PSC) have drawn a high efficiency, but the problem is their low stability. This study employs silver nanoparticles (Ag NPs) to enhance the performance of photovoltaic cells (PVC) by incorporating them into reduced graphene oxide (RGO), which serves as a hole-transporting layer. The incorporation of Ag NPs aims to elevate both the efficiency and stability of the PVC material. X-ray diffraction (XRD) is used to study the structure, Raman is used to study the vibrational modes of GO, while ultraviolet–visible spectroscopy (UV–Vis) and photoluminescence (PL) are used to study the optical properties of the material. Ag@RG has drawn a high power conversion efficiency (PCE) performance of 11.3% and <i>J</i><sub>sc</sub> of 16.1&#xa0;mA/cm<sup>2</sup>. In addition, the decoration of Ag has increased the stability of the hole transport layer (HTL) as it maintained about 72% of its initial performance after 4&#xa0;months. In this regard, Ag@RG is considered a promising HTL for enhancing the performance and stability of PSC.</p>

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Silver nanoparticle-decorated reduced graphene oxide as a hole transport layer for efficient and stable perovskite solar cells

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Hanaa Almaghamsi

摘要

Perovskite solar cells (PSC) have drawn a high efficiency, but the problem is their low stability. This study employs silver nanoparticles (Ag NPs) to enhance the performance of photovoltaic cells (PVC) by incorporating them into reduced graphene oxide (RGO), which serves as a hole-transporting layer. The incorporation of Ag NPs aims to elevate both the efficiency and stability of the PVC material. X-ray diffraction (XRD) is used to study the structure, Raman is used to study the vibrational modes of GO, while ultraviolet–visible spectroscopy (UV–Vis) and photoluminescence (PL) are used to study the optical properties of the material. Ag@RG has drawn a high power conversion efficiency (PCE) performance of 11.3% and Jsc of 16.1 mA/cm2. In addition, the decoration of Ag has increased the stability of the hole transport layer (HTL) as it maintained about 72% of its initial performance after 4 months. In this regard, Ag@RG is considered a promising HTL for enhancing the performance and stability of PSC.