Synthesis of colloidal aluminum nanoparticles by nanosecond pulsed laser and the effect of external electric field and laser fluence on ablation rate

Mozaffari, Hossein; Mahdieh, Mohammad Hossein

doi:10.1016/j.optlastec.2020.106083

Cited by 10 publications

(5 citation statements)

References 40 publications

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“…A similar study has been conducted for copper (Cu) NPs by Razaghianpour et al [31]. Mozaffari and Mahdieh studied the effect of electric field on ablation efficiency, and different orientations of electric field (parallel or perpendicular to the target surface) [33]. Moniri et al reports change in shape of platinum (Pt) NPs in the presence of electric field in addition to the reduction of size of NPs [25].…”

Section: Introductionmentioning

confidence: 82%

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Synergistic influence of external electric field on laser ablation in liquid: correlating nanoparticle synthesis and cavitation bubble dynamics

Mehta,

Ahuja,

Kumar

et al. 2024

Phys. Scr.

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The present study aims to investigate the changes in the properties of nanoparticles (NPs) and cavitation bubble dynamics on applying an external electric field during laser ablation in liquid (LAL). Investigating electric field assisted laser ablation in liquid (EFLAL) is crucial since phenomena such as plasma charging effect and electrostatic pressure have important role in determining the size, shape, and crystallinity. of the NPs. With this motivation, the present study has been conducted with different electric fields of 0, 100, 500 and 1000 V/cm to probe the effect of an external electric field on the dynamics of EFLAL. The charging effect observed on NPs during cavitation bubble dynamics was also investigated at these field intensities. The size of NPs witnesses a reduction from ~30 nm without electric field to ~19 nm in presence of electric field. Also, a significant narrowing of the size distribution by over 4 times was observed in the presence of electric field. This clearly demonstrates that EFLAL can be used to obtain NPs with uniform size distribution. Moreover, NPs of different shapes have also been observed by varying the electric field intensities (100 and 1000 V/cm). The effect of the external electric field on the dynamics of the cavitation bubble produced during EFLAL has been probed using shadowgraphy technique. It has been observed that the bubble size increases with the presence of an electric field. The estimation of the bubble pressure in the presence of an electric field has revealed that the implosion bubble pressure is significantly lower than pressure in the absence of the field. The results obtained for NPs have been correlated to the changes in bubble parameters in this work.

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Section: Introductionmentioning

confidence: 82%

“…Apart from experimental parameters, external perturbations have also been employed to control the properties of NPs. LAL experiments in the presence of external fields such as electric field, magnetic field, and temperature field have been studied by various research groups [25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Synergistic influence of external electric field on laser ablation in liquid: correlating nanoparticle synthesis and cavitation bubble dynamics

Mehta,

Ahuja,

Kumar

et al. 2024

Phys. Scr.

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“…They observed that the smallest mean diameter was 17.54 nm and the narrowest particle distribution was 36.86 nm at a fluence of 4.2 J/cm 2 . Colloidal NPs produced by ablating Al in ethanol are synthesised, and their effects on fluence was investigated by Mozaffari et al [121]. They observed that at two experimental schemes (the electric field parallel and perpendicular to the laser propagation), the ablation rate of NPs increased with fluence.…”

Section: Laser Fluencementioning

confidence: 99%

Influence of Laser Process Parameters, Liquid Medium, and External Field on the Synthesis of Colloidal Metal Nanoparticles Using Pulsed Laser Ablation in Liquid: A Review

2022

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Pulsed laser ablation in liquid, used for nanoparticle synthesis from solid bulk metal targets (a top-down approach), has been a hot topic of research in the past few decades. It is a highly efficient and ‘green’ fabrication method for producing pure, stable, non-toxic (ligand-free), colloidal nanoparticles, which is often challenging using traditional chemical methods. Due to the short time scale interaction between the laser pulses and the target, it is difficult to achieve complete control on the physical characteristics of metallic nanoparticles. Laser process parameters, liquid environment, and external fields vastly effect the shape and structure of nanoparticles for targeted applications. Past reviews on pulsed laser ablation have focused extensively on synthesising different materials using this technique but little attention has been given to explaining the dependency aspect of the process parameters in fine-tuning the nanoparticle characteristics. In this study, we reviewed the state of the art literature available on this technique, which can help the scientific community develop a comprehensive understanding with special insights into the laser ablation mechanism. We further examined the importance of these process parameters in improving the ablation rate and productivity and analysed the morphology, size distribution, and structure of the obtained nanoparticles. Finally, the challenges faced in nanoparticle research and prospects are presented.

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“…It is generally accepted [21] that for pulsed laser ablation with a high energy density of radiation (above the lower ablation threshold), the relationship between the ablation rate (crater depth per laser pulse) and fluence can be expressed by a nonlinear increasing function. Mozaffari et al [22] initiated the ablation of aluminum by a Q-switched Nd:YAG laser (1064 nm, ~10 ns and 10 Hz) in ethanol at room temperature. In [22], it was experimentally shown that the relative rate of laser ablation is logarithmically proportional to the laser radiation flux density.…”

Section: Introductionmentioning

confidence: 99%

“…Mozaffari et al [22] initiated the ablation of aluminum by a Q-switched Nd:YAG laser (1064 nm, ~10 ns and 10 Hz) in ethanol at room temperature. In [22], it was experimentally shown that the relative rate of laser ablation is logarithmically proportional to the laser radiation flux density. These findings are partially confirmed by studies by Shaheen et al [16].…”

Section: Introductionmentioning

confidence: 99%

Prospects for the Use of Metal Surfaces Modified by Nanosecond Laser Radiation for Energy Applications

Glushkov,

Paushkina,

Pleshko

et al. 2023

Energies

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Laser technologies for processing metals used as heat exchange surfaces are unrivaled to solve a number of problems in the energy industry. This is explained by the fact that after laser radiation treatment, metal surfaces gain unique surface functional properties (extreme wettability properties, high resistance to corrosion in contact with traditional coolants, high abrasive and cavitation resistance). The study of the processes of evaporation, boiling, and condensation on such surfaces is hampered by one of the unsolved problems, which is the lack of the ability to predict the configuration of microtextures, for example, in the form of micropillars and microchannels with predetermined sizes. In this work, a graphic–analytical technique based on the use of ablation spot sizes for the formation of a given configuration and microtexture dimensions on traditional structural materials of heat exchange surfaces is developed. Based on experimental data, regime maps were constructed for the formation of microtextures on the surfaces of aluminum alloy AlMg6 and steel AISI 310. The prospects for using metal surfaces with a given microtexture formed by laser radiation to intensify the phase transition of coolants and control convective flows in a droplet lying on a heated surface were assessed. The obtained results can be used in the development of spray (drip) irrigation systems to provide thermal protection for heat-stressed equipment.

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Synthesis of colloidal aluminum nanoparticles by nanosecond pulsed laser and the effect of external electric field and laser fluence on ablation rate

Cited by 10 publications

References 40 publications

Synergistic influence of external electric field on laser ablation in liquid: correlating nanoparticle synthesis and cavitation bubble dynamics

Synergistic influence of external electric field on laser ablation in liquid: correlating nanoparticle synthesis and cavitation bubble dynamics

Influence of Laser Process Parameters, Liquid Medium, and External Field on the Synthesis of Colloidal Metal Nanoparticles Using Pulsed Laser Ablation in Liquid: A Review

Prospects for the Use of Metal Surfaces Modified by Nanosecond Laser Radiation for Energy Applications

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