0618796 - FZÚ 2026 RIV DE eng J - Journal Article
Altakroury, A. R. - Gatsa, Oleksandr - Riahi, F. - Fu, Z.W. - Flimelová, Miroslava - Samokhvalov, A. - Barcikowski, S. - Donate-Buendia, C. - Bulgakov, Alexander V. - Goekce, B.
Size control of nanoparticles synthesized by pulsed laser ablation in liquids using donut-shaped beams.
Beilstein Journal of Nanotechnology. Roč. 16, Mar (2025), s. 407-417. ISSN 2190-4286. E-ISSN 2190-4286
R&D Projects: GA MŠMT(CZ) EH22_008/0004596; GA ČR(CZ) GF22-38449L
Institutional support: RVO:68378271
Keywords : beam shaping * cavitation bubble * donut beam * gold nanoparticles * high-entropy alloy nanoparticles * nanoparticle size analysis * yttrium oxide nanoparticles
OECD category: Nano-materials (production and properties)
Impact factor: 2.6, year: 2023 ; AIS: 0.472, rok: 2023
Method of publishing: Open access
DOI: https://doi.org/10.3762/bjnano.16.31

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.
Permanent Link: https://hdl.handle.net/11104/0365731
 
Scientific data in ASEP :
Size control of nanoparticles synthesized by pulsed laser ablation in liquids using donut-shaped beams