CC BY
1The 30th International Conference on Advanced Laser Technologies
ALT'23
LM-I-6
Laser ablation synthesis and assembly of multicomponent
nanostructures in liquids
N.V. Tarasenko, V.G. Kornev, A.A. Nevar, M.I. Nedelko, N.N. Tarasenka
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus 68-2 Nezalezhnasti Ave., 220072 Minsk, Belarus
In recent years, development of plasma-assisted methods in liquids towards their application in material processing and nanotechnology has been a relevant topic of modern research. Among the plasma-induced approaches, laser-assisted methods are among the most studied due to its simplicity and versatility as well as dependence of the nanomaterials characteristics on the laser parameters that opens up possibilities for the controlled formation of nanoparticles (NPs) of a given size and composition. Moreover, in plasma-liquid systems, plasma exists, as a rule, in a non-equilibrium state, contains various highly reactive particles, and thus is well suited for the synthesis of composite nanomaterials such as hybrid, alloyed, and doped ones. Apart from the controlled synthesis, of interest is also to develop the methods of assembly and deposition of the forming nanomaterials into ordered structures for their further practical application. In this paper, we discuss the capabilities of laser ablation plasma approaches for synthesis and assembly of multicomponent nanostructures with a control over their composition, structure and morphology. The relationship between the NPs structure and experimental parameters revealed in the present work allowed proposing several novel laser assisted schemes suitable for the synthesis of NPs of alloys (Ge-Sn) [1], compounds (SiC, ZnO, CuO) [2,3], doped (ZnO:Nd) [4] nanocrystals and hybrid (ZnO/C, Si-Ag, Si-Cu and Si-Ag-Au) [5,6] structures. Furthermore, several schemes for the one-pot synthesis and assembly of the forming NPs are discussed. As one of the promising approaches, application of the electric field to the target and substrate during laser ablation in liquids has been shown to be capable both of varying the nanoparticles morphology and of their simultaneous deposition into ordered hierarchical nanostructures on the counter electrode. The morphology variation has been shown to be achieved by the changing the polarity and strength of the applied external electric field. For example, ZnO nanoflowers or nanodiscs can be formed depending on the polarity of the electrical field applied to the target, while in the case of Cu ablation in water nanowires or nanorods were produced. Moreover, in the case of Cu ablation in water, changing the polarity allows also to vary the CuO:Cu2O ratio in the nanomaterial. The Raman, XRD and FTIR results proved the formation of metal oxides phases. For further formation of heterostructures, a two-step combined laser-discharge approach was developed shown to be capable of preparation of CuO/ZnO nanoheterostructures. In the proposed scheme, preliminarily, plasma assisted deposition of ZnO film on the ITO substrate was performed using the developed technique based on atmospheric pressure dc discharge plasma. The plasma-assisted electrolysis ensured the ZnO thin film electrodeposition with a good adhesion to the ITO substrate. The deposited ZnO/ITO sample was further used as a substrate for CuO deposition during electric field-assisted laser ablation in liquid. At this stage, the heterogeneous CuO/ZnO nanocomposite structures were formed. The achieved uniform nanomaterial distribution of the formed heterogeneous nanostructures as well as developed surface is beneficial for the different practical applications.
The work was supported by the National Academy of Sciences of Belarus under project Convergence 2.2.05 and by the Belarusian Foundation for Fundamental Researches under Grants F23RNF-156 and F22SRBG-008.
[1] N.N. Tarasenka, N.V. Tarasenko, V.V. Pankov, Preparation of Germanium-Tin Alloy Nanoparticles by Laser-Assisted Techniques in Liquid, Intern. J. of Nanoscience, vol. 18, p.1940049 (2019).
[2] N. Tarasenka, V. Kornev, M. Rzheutski, E. Lutsenko, S. Chakrabarti, T. Velusamy, D. Mariotti, N. Tarasenko Fabrication of luminescent silicon carbide nanoparticles by pulsed laser synthesis in liquid, Applied Physics A, vol. 128, (2022).
[3] N. Tarasenka, E. Shustava, A. Butsen, A. Kuchmizhak, S. Pashayan, S. Kulinich, N. Tarasenko, Laser-assisted fabrication and modification of copper and zinc oxide nanostructures in liquids for photovoltaic applications, Appl. Surface Science vol. 554, 149570 (2021).
[4] N. Tarasenka, V. Kornev, A. Ramanenka, R. Li, N. Tarasenko Photoluminescent neodymium-doped ZnO nanocrystals prepared by laser ablation in solution for NIR-II fluorescence bioimaging Heliyon, vol.8, p.e09554, (2022).
[5] N. Tarasenka, et al Synthesis of ZnO/C Nanocomposites via Liquid-Assisted Laser Ablation in an Applied Electric Field for Supercapacitor Applications, ACS Appl. Nano Mater., vol.6, p.5918 (2023).
[6] N. Tarasenka, et al Laser Synthesis and Optical Properties of Hybrid Silicon Nanostructures for Photothermal Conversion of Solar Radiation J. of Appl. Spectroscopy, vol 90, p. 253, (2023).
