Tuning of the characteristics of Au nanoparticles produced by solid target laser ablation into water by changing the irradiation parameters

Abstract

We report the production of Au nanoparticles with different average sizes and size distributions, by laser ablation of a solid Au target into pure deionized water. Tuning laser parameters such as pulse duration, energy, and wavelength is possible to tune the size and the size distributions of the produced nanoparticles into the liquid. We demonstrate the possibility of production of highly monodispersed colloidal solutions, in which the average nanoparticle size ranges from 3 to 10 nm, using laser pulses of ns duration. Laser ablation using fs laser pulses can also produce very small nanoparticles, although a small population of bigger nanoparticles is always present. Low and high-resolution transmission electron microscopy (TEM), in combination with UV-Vis spectroscopy have been employed for the characterization of our samples.

The effect of applied electric field on the micromorphology of Pt nanoparticles synthesized by laser ablation

“…The significant attractions of noble metal nanoparticles (NPs) in liquids in the last decade is due to their reliable applications as biosensors and optical devices as well as their unique properties like catalytic activities and physical characteristics (Kalyva, Bertoni, Milionis, Cingolani, & Athanassiou, 2010; Liu, Feng, & Jie, 2017; Mozaffari et al, 2020). Among, platinum (Pt) and its alloy NPs illustrate important role in the industry of electronic, catalysts, fuel cells, and capacitors (Ascarelli, Contini, & Giorgi, 2002).…”

Combination of Lithography and Coating Methods for Surface Wetting Control

“…This lithographic technique is nowadays used widely in the industry for the fabrication of MEMS/NEMS, CMOS, 3Dmicrostructures, micro-trenches, micro-channels, micro-holes, sub-micrometer gratings, nanophotonics and surfaces dedicated to bacterial activity [33,34]. Laser ablation, apart from the microstructuring of surfaces, has also been used alternatively as a technique to produce NPs by irradiating solid targets [35]. Its main advantages when compared with other lithography techniques are the fast material processing speed, large scan area and single-step capability.…”

Electrical response from nanocomposite PDMS–Ag NPs generated byin situlaser ablation in solution

“…In particular, LA in water is a rather simple and rapid technique and it allows control of the NP size and size distribution by variation of parameters, e.g. laser fluence, irradiation time, focusing of the laser to the target surface, etc [33]. Laser ablation in organic solvents has also been studied for controlling the size, but also for direct functionalization of the generated NPs [30].…”