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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:21 |
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Conference: Bucharest University Faculty of Physics 2024 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Oxide nanostructures obtained by laser ablation in liquid for applications in econanotechnologies
Authors:
Mihai Adrian DĂRLĂU(1,2), Mihai ZAMFIR(2), Anca CRIVEANU(2), Nicu Doinel SCĂRIȘOREANU(2)
Affiliation:
1) University of Bucharest, Faculty of Physics, 405 Atomiștilor str., PO Box MG-38, Bucharest-Măgurele, Romania
2) National Institute for Lasers, Plasma and Radiation Physics, 409 Atomiștilor, PO Box MG-16, 077125 Măgurele-Bucharest, Romania
E-mail
mihai.darlau@inflpr.ro
Keywords:
Nanoparticles, Lanthanum doped BiFeO3, laser ablation
Abstract:
Multiferroic materials have attracted increasing attention for developing multi-effect coupling between different physical properties and exploring the possibility of environmental application. In this work, La-doped BiFeO3 (BLFO) nanoparticles were obtained by pulsed laser ablation in liquid media (PLAL). For laser ablation experiments distilled water was used as interaction media. Laser ablation was carried out using the third harmonic, second harmonic and fundamental wavelength of a pulsed Nd:YAG laser (355 nm, 532 nm and 1064 nm) at 10 Hz repetition rate and 10 ns pulse width. The time of ablation was 20 minutes for all experiments and laser fluence for each laser wavelength was 1 J/cm2, 2 J/cm2 and 1 J/cm2. The surface morphology and particle size distribution of the as-synthesized powder samples were analyzed by a scanning electron microscope (SEM) and Dynamic Light Scattering (DLS).
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