Tungsten Nanoparticles Produced by Magnetron Sputtering Gas Aggregation: Process Characterization and Particle Properties

Acsente, T.; Bernard, E.; Dinescu, Gheorghe; Negrea, Raluca; Matei, Elena; Biţă, Bogdan; Carpen, Lavinia Gabriela; Grisolia, Christian

doi:10.5772/intechopen.91733

Cited by 11 publications

(8 citation statements)

References 48 publications

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“…The interaction between the Au atoms yields the formation of the Au dimer, which serves as the embryo for the nanocluster formation while the inert gas atom consumes the excess energy generated in the reaction [ 18 ]. The yield of the formed embryos increases with the density of the atomic vapor [ 13 ].…”

Section: Methodsmentioning

confidence: 99%

Production of Size-Controlled Gold Nanoclusters for Vapor–Liquid–Solid Method

et al. 2022

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This study demonstrated the deposition of size-controlled gold (Au) nanoclusters via direct-current magnetron sputtering and inert gas condensation techniques. The impact of different source parameters, namely, sputtering discharge power, inert gas flow rate, and aggregation length on Au nanoclusters’ size and yield was investigated. Au nanoclusters’ size and size uniformity were confirmed via transmission electron microscopy. In general, Au nanoclusters’ average diameter increased by increasing all source parameters, producing monodispersed nanoclusters of an average size range of 1.7 ± 0.1 nm to 9.1 ± 0.1 nm. Among all source parameters, inert gas flow rate exhibited a strong impact on nanoclusters’ average size, while sputtering discharge power showed great influence on Au nanoclusters’ yield. Results suggest that Au nanoclusters nucleate via a three-body collision mechanism and grow through a two-body collision mechanism, wherein the nanocluster embryos grow in size due to atomic condensation. Ultimately, the usefulness of the produced Au nanoclusters as catalysts for a vapor–liquid–solid technique was put to test to synthesize the phase change material germanium telluride nanowires.

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Section: Methodsmentioning

confidence: 99%

Production of Size-Controlled Gold Nanoclusters for Vapor–Liquid–Solid Method

et al. 2022

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“…Volume 3, 78-83 thermal evaporation, laser ablation, magnetron plasma sputtering, etc. [12] • Laser Ablation -The process separated the layers from solid bulk materials by utilising a laser beam for utmost accuracy. The laser beam irradiates the top layer, concluding that it has been disclosed to laser beam radioactivity.…”

Section: Methods For Processing Ag Npsmentioning

confidence: 99%

Methods for Obtaining Silver Nanoparticles - A Review.

Ghalot

Lazov

2021

ETR

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Silver has been part of active medical use for treatment and disinfection from ages, even in the present times. Particularly relevant today is the question of the effect of silver nanoparticles on bacteria and viruses, including against COVID-19. The study reviews distinct methods for producing silver nanoparticles. The comparison and preferences of different methods based on their classification and features are reviewed. The main goal of this study is to reveal the top-notch method and their benefits and prospects of the possibilities of the method - laser ablation, as a cost-effective and environment friendly technology for generating silver nanoparticles in an aqueous environment. The method of Pulsed Laser Ablation in Liquid for obtaining nanoparticles is explained in detail. The paper is divided into several main parts, starting with a briefing on silver and its nanoparticles and is followed by various methods for their production.

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“…• High-Pressure Magneton Sputtering -It falls under bottom-up process & inhabits in abridgment of super-saturated vapor via cold inert gas flow. This vapor atmosphere is acquired by discrete processes like thermal evaporation, laser ablation, magnetron plasma sputtering, and many other [34].…”

Section: Physical Methodsmentioning

confidence: 99%

Silver Nanoparticles - Preparation Methods and Anti-Bacterial/Viral Remedy Impacts against COVID 19

Lazov¹,

Ghalot²,

Teirumnieks³

2021

Silver Micro-Nanoparticles - Properties, Synthesis, Characterization, and Applications

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Silver has been an influential segment of pharmaceutical utilization for remedies & hygiene in the latest era. The first topic reviews the study on air sanitization ventilation & air sanitizer systems using laser ablated silver nanoparticles (inspired by 2020 Pandemic) directing to contamination of deadly biological particles. Intention of this investigation is to validate possible antiviral silver nanoparticles construction to be distributed by retention, to abate the aggravation of breathing organs flu. The underlying description of investigation consists of bibliometric reasoning of the review of the outcome of silver nanoparticles on the sterilization of viral ailments. The investigation will deliberate the approach of use of laser ablated silver nanoparticles for anti-actions. The chapter outcomes in the fascinating utilization of silver nanoparticles for pharmaceutical purposes for contagious diseases, viruses or bacteria and devotes to the upgradation of therapeutic education to safeguard health care workers from threatening viruses at therapeutic organizations. Morally, the investigation will obtain a hygienic scheme, which might be installed at every communal or individual places cost-effectively including silver nanoparticles (because of their therapeutic properties). The second section of investigation considers distinct techniques for manufacturing silver nanoparticles. The various schemes have been compared based on their pros & cons. The method of laser ablation for generating nanoparticles underwater is briefed. The intention of this part is to disclose the current & anticipation probabilities of the process - laser ablation, as a profitable and eco-favorable innovation for manufacturing silver nanoparticle in liquid solutions. The chapter is motivated by two of our reviewed papers i.e., “Antibacterial and anti-viral effects of silver nanoparticles in medicine against covid 19” and “Methods for obtaining silver nanoparticles”.

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Tungsten Nanoparticles Produced by Magnetron Sputtering Gas Aggregation: Process Characterization and Particle Properties

Cited by 11 publications

References 48 publications

Production of Size-Controlled Gold Nanoclusters for Vapor–Liquid–Solid Method

Production of Size-Controlled Gold Nanoclusters for Vapor–Liquid–Solid Method

Methods for Obtaining Silver Nanoparticles - A Review.

Silver Nanoparticles - Preparation Methods and Anti-Bacterial/Viral Remedy Impacts against COVID 19

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