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Graphene-Based Nanostructures Produced by Laser Ablation Assisted by Electric Field.

Mariapompea Cutroneo1, Vaclav Holy2, Petr Malinsky3,4

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|January 9, 2026
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Summary

Electric-field-assisted pulsed laser ablation (PLA) offers a green method for producing tunable graphene nanoparticles. This technique enhances control over nanoparticle size and morphology without chemical additives, advancing sustainable nanotechnology.

Keywords:
electric fieldgraphene-based materiallaser ablation in liquidnanostructures

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Green Chemistry

Background:

  • Carbon-based nanomaterials possess unique properties for applications in optoelectronics, energy, bioimaging, and sensors.
  • Pulsed Laser Ablation in Liquids (PLA) is a simple, rapid, and environmentally friendly method for nanostructure fabrication.
  • Reproducibility of size and shape in PLA remains a challenge, often addressed by optimizing laser parameters and liquid characteristics.

Purpose of the Study:

  • To compare the synthesis of graphene-based nanostructures using electric-field-assisted PLA in distilled water versus deionized water.
  • To investigate the influence of an applied electric field on the synthesis of graphene nanoparticles without chemical reagents.
  • To demonstrate an innovative and sustainable approach for producing graphene nanoparticles with controlled properties.

Main Methods:

  • Electric-field-assisted pulsed laser ablation (PLA) of a graphite target immersed in distilled water and deionized water.
  • Constant laser parameters with varying applied voltage between immersed electrodes.
  • Characterization of synthesized nanostructures using UV-Vis and FTIR spectroscopies for optical properties and Atomic Force Microscopy (AFM) for morphology and quality.

Main Results:

  • The applied electric field significantly influences plasma dynamics, cavitation bubble evolution, and nanoparticle growth.
  • Controlled tuning of graphene nanoparticle size and morphology was achieved by adjusting the electric field.
  • Characterization confirmed the composition, morphology, and quality of the produced graphene nanostructures.

Conclusions:

  • Electric-field-assisted PLA in water provides an effective and eco-friendly route for reproducible graphene nanoparticle synthesis.
  • This method allows for precise control over nanoparticle characteristics, overcoming a key limitation of traditional PLA.
  • The study highlights a sustainable nanotechnology approach for producing advanced carbon-based materials.