Size control of nanoparticles synthesized by pulsed laser ablation in liquids using donut-shaped beams
The potential to modify the size distribution of nanoparticles synthesized by pulsed laser ablation in liquids is demonstrated using a donut-shaped laser beam. In experiments on pulsed laser ablation in water of gold, yttrium oxide, and high-entropy alloy targets with both Gaussian and donut-shaped beams, we observed a significant reduction in particle size, narrowing of the size distribution width, and an improvement in sphericity when utilizing the donut-shaped laser beam. We performed time-resolved shadowgraph imaging of the laser-induced cavitation bubble, revealing a toroidal structure that overruns the ring-shaped ablation site, compared to the quasi-hemispherical bubble covering the ablation spot produced by the Gaussian beam. Based on this pioneering study, further investigation with higher temporal and spatial resolution are warranted.
Authors
- Stephan Barcikowski (ORCID: https://orcid.org/0000-0002-9739-7272)
- Oleksandr Gatsa (ORCID: https://orcid.org/0000-0002-9832-3590)
- Alexander Samokhvalov (ORCID: https://orcid.org/0000-0002-7273-7322)
- Alexander V. Bulgakov (ORCID: https://orcid.org/0000-0002-9651-1328)
- Bilal Gökce (ORCID: https://orcid.org/0000-0001-6368-9659)
- Miroslava Flimelová (ORCID: https://orcid.org/0000-0002-9550-3107)
- Farbod Riahi (ORCID: https://orcid.org/0000-0002-7411-5412)
- Carlos Doñate‐Buendía (ORCID: https://orcid.org/0000-0002-7022-0960)
- Zongwen Fu (ORCID: https://orcid.org/0000-0003-2140-2263)
- Abdel Rahman Altakroury
Institutions
- Universitat Jaume I (ES)
- University of Wuppertal (DE)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- University of Duisburg-Essen (DE)
Publication Details
- Journal
- Beilstein Journal of Nanotechnology
- Published
- 2025-03-25
- DOI
- https://doi.org/10.3762/bjnano.16.31
- Citations
- 8
- Primary Topic
- Laser-Ablation Synthesis of Nanoparticles
- Type
- article
- Field-Weighted Citation Impact
- 5.39
Funders
- Deutsche Forschungsgemeinschaft