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<p>This study focuses on the synthesis of barium titanate (BaTiO<sub>3</sub>) nanoparticles (NPs) utilizing laser ablation in liquid and their application in the manufacture of photodetectors. Using a Q-switched pulsed Nd:YAG laser at different energy levels, BaTiO<sub>3</sub> NPs were synthesized in deionized water. Depending on the used laser energy, an X-ray diffraction (XRD) study verified that the produced BaTiO<sub>3</sub> NPs had a cubic perovskite structure with grain sizes ranging from 281 to 458&#xa0;nm. On porous silicon (PS) substrates, scanning electron microscopy (SEM) imaging found consistently spaced spherical BaTiO<sub>3</sub> NPs. Further characteristics include a surface plasmon resonance peak at 355&#xa0;nm in laser-induced samples, and a bandgap decrease with increasing laser power was identified by optical analysis. Enhanced photocurrent and responsivity rates shown by electrical characterization point to the possibility of BaTiO<sub>3</sub>/PS nanostructures to raise photodetector performance.</p>

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Synthesis of BaTiO3 Nanoparticles via Laser Ablation in Liquid for Photodetector Application

  • 期刊论文

  • 发表日期：

    2025年3月13日

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  • Wand H. Mohammed,
  • Rabea Q. Nafil,
  • Uday M. Nayef,
  • Suaad S. Shaker

摘要

This study focuses on the synthesis of barium titanate (BaTiO3) nanoparticles (NPs) utilizing laser ablation in liquid and their application in the manufacture of photodetectors. Using a Q-switched pulsed Nd:YAG laser at different energy levels, BaTiO3 NPs were synthesized in deionized water. Depending on the used laser energy, an X-ray diffraction (XRD) study verified that the produced BaTiO3 NPs had a cubic perovskite structure with grain sizes ranging from 281 to 458 nm. On porous silicon (PS) substrates, scanning electron microscopy (SEM) imaging found consistently spaced spherical BaTiO3 NPs. Further characteristics include a surface plasmon resonance peak at 355 nm in laser-induced samples, and a bandgap decrease with increasing laser power was identified by optical analysis. Enhanced photocurrent and responsivity rates shown by electrical characterization point to the possibility of BaTiO3/PS nanostructures to raise photodetector performance.