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<p>In this work, a modification of the properties of AuNPs/SiNPs hybrid structure via the Laser ablation process effect of pulse repetition rate hybrid structural layer was created by a well-controlled laser ablation process between gold and silicon nanoparticles. Nd:YAG laser with a wavelength of 532 nm and an energy of 300 mJ, and operating at 3 Hz, to a p-type silicon wafer submerged in a methanol solution, silicon and gold nanoparticles were created. It was employed to synthesize SiNPs at a 1000 pulse rate. The gold nanoparticles (AuNPs) were created by bombarding a colloidal SiNPs solution with different pulses ranging from 250 to 1000 pulses. FE-SEM, XRD, EDS, and UV–visible spectroscopy revealed the characteristics of the formed hybrid structure. The results showed that the grain size, S.S.A., and surface morphology of the individual element SiNPs and AuNPs at the hybrid structure vary based on the pulse repetition rate of AuNPs. The optimum condition for high S.S.A. and lower grain size well-efficient condition with a 750-plus rate. This process is simple and low-cost cost as well as other processes, to synthesize isolated hybrid structures.</p>

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Effect of Laser Pulse Rate on SiNPs/AuNPs Hybrid Nanostructures Synthesized by Laser Ablation in Liquid

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • Rosul H. Taha,
  • Alwan M. Alwan,
  • Mohammed S. Mohammed

摘要

In this work, a modification of the properties of AuNPs/SiNPs hybrid structure via the Laser ablation process effect of pulse repetition rate hybrid structural layer was created by a well-controlled laser ablation process between gold and silicon nanoparticles. Nd:YAG laser with a wavelength of 532 nm and an energy of 300 mJ, and operating at 3 Hz, to a p-type silicon wafer submerged in a methanol solution, silicon and gold nanoparticles were created. It was employed to synthesize SiNPs at a 1000 pulse rate. The gold nanoparticles (AuNPs) were created by bombarding a colloidal SiNPs solution with different pulses ranging from 250 to 1000 pulses. FE-SEM, XRD, EDS, and UV–visible spectroscopy revealed the characteristics of the formed hybrid structure. The results showed that the grain size, S.S.A., and surface morphology of the individual element SiNPs and AuNPs at the hybrid structure vary based on the pulse repetition rate of AuNPs. The optimum condition for high S.S.A. and lower grain size well-efficient condition with a 750-plus rate. This process is simple and low-cost cost as well as other processes, to synthesize isolated hybrid structures.