Formation of nanoparticles during double-pulse laser ablation of metals in liquids

Бураков, В. С.; Тарасенко, Н. В.; Butsen, A. V.; Rozantsev, V. A.; Nedelko, Mikhail

doi:10.1051/epjap:2005016

Cited by 38 publications

(35 citation statements)

References 17 publications

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“…Thus, Au nanorods can be synthesized by using potato starch as a stabilizer. Laser-induced particle fragmentation has been reported [11,12,[23][24][25][26]. However, the profound reductions in the particle size and size distribution observed here cannot be attributed simply only to the coupling effects between the ablated particles and the second laser beam that can further heat, melt, and fragment the ablated particles into smaller size particles.…”

Section: Resultsmentioning

confidence: 58%

Complete Green Synthesis of Gold Nanoparticles using Laser Ablation in Deionized Water Containing Chitosan and Starch

Phuoc¹

2014

Journal of Materials Science and Nanotechnology

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Section: Resultsmentioning

confidence: 58%

Complete Green Synthesis of Gold Nanoparticles using Laser Ablation in Deionized Water Containing Chitosan and Starch

Phuoc¹

2014

Journal of Materials Science and Nanotechnology

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“…Under our experimental conditions the intensity of the absorption bands also depended on the ablation regime. It has been shown [11] that double-pulse ablation in liquids is more efficient than single-pulse ablation. This shows up as an enhanced efficiency of nanoparticle formation with the same number of applied laser pulses.…”

Section: Characteristics Of Nanoparticles Produced By Laser Ablation mentioning

confidence: 99%

“…It is important to identify the distinctive features of plasma formation in liquids with one and two pulse operation. We may assume that two pulse operation increases the ablation efficiency [11], mainly because of an enhanced intensity of the emission from atoms and ions in the laser ablation plasma and the greater sensitivity of laser spectral analysis when two pulses, rather than one, are used [12,13]. Furthermore, with two pulse operation it is possible to make smaller particles in the ablation flare owing to heating and fragmentation of particles formed by the first laser pulse.…”

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confidence: 99%

Laser-induced plasmas in liquids for nanoparticle synthesis

2010

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Spatially and temporally resolved emission spectroscopy is used to study the major features of the onset and evolution of plasmas created by pulsed laser irradiation of targets immersed in liquids. It is shown that double pulse operation provides an enhanced rate of nanoparticle formation and increases the emission signal from the plasma atoms and ions owing to more efficient ablation of the target material. The main parameters (density of atoms, electron temperature and density) of laser-induced plasmas in liquids are estimated. The prospects of laser ablation in liquids as a method for producing nanoparticles are analyzed.Keywords: laser-induced plasmas in liquids, double pulse ablation, electron density and temperature, spatially and temporally resolved emission spectroscopy.Introduction. In recent years there has been increased interest in the production and study of nanostructured materials. The structural elements of these materials have characteristic sizes in the range of 1-100 nm so they can have unique electronic, magnetic, and chemical properties which differ from those of the corresponding bulk materials. For example, nanostructured materials can have enhanced mechanical characteristics (hardness, durability), catalytic activity, or luminescence properties, which are absent or less marked in their macroscopic analogs. Thus, nanostructures offer great promise for heterogeneous catalysis and micro-and optoelectronics, and can be used as gas sensors in medicine, biology, and other areas [1][2][3].It should be noted that different methods of nanoparticle synthesis are used, depending on their size, shape, and chemical composition : physical methods based on vapor condensation [4], chemical methods using reduction reactions of metallic ions from solutions of their salts [5], and combined methods [6]. In a number of cases, nanoparticles are obtained in the form of colloidal solutions, which are most often produced by various chemical methods. The main deficiency of these methods is that, besides the nanoparticles, these solutions contain ions and other reaction byproducts which are often difficult to avoid. An alternative method of obtaining nanoparticles that is free of these deficiencies is laser ablation of solids in liquids [7-10].One of the advantages of the laser ablation technique is its universality -the possibility of using it for metals and alloys, semiconductors and dielectrics with different compositions, fairly extensive control of the properties of the synthesized particles by changing the parameters of the laser radiation, and the production of composite particles by ablation of multicomponent targets.Laser ablation of solids can take place in a gaseous atmosphere or in a liquid. In the latter case there is no need use costly vacuum systems and the problem of collecting the nanoparticles is comparatively simple, compared to the difficulties of doing so in gaseous atmospheres. With ablation in a liquid the nanoparticles remain in the volume of the liquid and form a colloidal solution.Although ...

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“…[16][17][18] In recent years, the use of laser-based methods to produce a variety of metal nanoparticles has become increasingly common. [19][20][21][22][23][24] The laser-based preparation of copper nanoparticles (CuNPs) has received attention, [25][26][27] in part owing to the history of copper as a coinage metal. However, unlike, for example, the laser-based formation of gold [23] and platinum [24] nanoparticles, the susceptibility of CuNPs to surface oxidation both during and following their formation has made studies of CuNP chemistry more challenging.…”

Section: Introductionmentioning

confidence: 99%

Laser-Based Formation of Copper Nanoparticles in Aqueous Solution: Optical Properties, Particle Size Distributions, and Formation Kinetics

et al. 2017

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We explore the formation kinetics, optical absorption spectra, and particle size distributions of copper nanoparticles (CuNPs) formed by direct laser ablation from the bulk metal via a process we refer to as Laser Ablation Synthesis in Solution (LASiS). Comparisons are made between CuNPs formed in pure water versus those formed in the presence of 1 Â 10 À4 M solutions of the N-donor ligands 4,4 0 -bipyridine (4,49Bipy) and 1H-5-(4-pyridyl)tetrazole (T-4Py). CuNPs formed in pure water and in the presence of 4,49Bipy display similar UV-visible absorption spectra and very similar particle size distributions. In comparison, CuNPs formed in the presence of T-4Py display significantly different absorption properties, with the surface plasmon resonance transition blue-shifted by ,55 nm, and a much smaller and narrower particle size distribution compared with the former samples. Based on previous literature reports, it is possible to ascribe these differences to differences in the CuNP surface oxidation states for samples prepared in the presence of T-4Py. However, an analysis of the formation kinetics of all three samples indicates near-identical behaviour.

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Formation of nanoparticles during double-pulse laser ablation of metals in liquids

Cited by 38 publications

References 17 publications

Complete Green Synthesis of Gold Nanoparticles using Laser Ablation in Deionized Water Containing Chitosan and Starch

Complete Green Synthesis of Gold Nanoparticles using Laser Ablation in Deionized Water Containing Chitosan and Starch

Laser-induced plasmas in liquids for nanoparticle synthesis

Laser-Based Formation of Copper Nanoparticles in Aqueous Solution: Optical Properties, Particle Size Distributions, and Formation Kinetics

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