Neutral-cluster implantation in polymers by computer experiments

Cardia, Roberto; Melis, Claudio; Colombo, Luciano

doi:10.1063/1.4810933

Cited by 13 publications

(8 citation statements)

References 42 publications

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“…On the other hand, the simulations showed that even clusters with rather low kinetic energies largely affect polymer structure and morphology around the impact spot favoring the penetration of the impinging NPs into the polymer. 33 In this work, we focus on the soft landing of size-selected silver NPs formed by magnetron sputtering cluster apparatus (MaSCA) 34 and development of a methodology for the cluster embedment into thin poly (methyl methacrylate) (PMMA) films by controlling the polymer hardness and applying annealing. Investigations of structure and properties of the nanocomposites give important insights into the understanding of the mechanisms governing NP penetration and following distribution in the polymer substrates as well as demonstrate remarkable plasmonic properties of the synthesized materials.…”

Section: Introductionmentioning

confidence: 99%

“…On the one hand, it can be facilitated by the aforementioned difference in surface energies of metal NPs and polymers. On the other hand, the simulations showed that even clusters with rather low kinetic energies largely affect polymer structure and morphology around the impact spot favoring the penetration of the impinging NPs into the polymer …”

Section: Introductionmentioning

confidence: 99%

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Poly(methyl methacrylate) composites with size-selected silver nanoparticles fabricated using cluster beam technique

Hanif

Juluri

Chirumamilla

et al. 2016

J. Polym. Sci. Part B: Polym. Phys.

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An embedment of metal nanoparticles of welldefined sizes in thin polymer films is of significant interest for a number of practical applications, in particular, for preparing materials with tunable plasmonic properties. In this article, we present a fabrication route for metal-polymer composites based on cluster beam technique allowing the formation of monocrystalline size-selected silver nanoparticles with a 65-7% precision of diameter and controllable embedment into poly (methyl methacrylate). It is shown that the soft-landed silver clusters preserve almost spherical shape with a slight tendency to flattening upon impact. By controlling the polymer hardness (from viscous to soft state) prior the cluster deposition and annealing conditions after the deposition the degree of immersion of the nanoparticles into polymer can be tuned, thus, making it possible to create composites with either particles partly or fully embedded into the film. Good size selection and rather homogeneous dispersion of nanoparticles in the thin polymer film lead to excellent plasmonic properties characterized by the narrow band and high quality factor of localized surface plasmon resonance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Poly(methyl methacrylate) composites with size-selected silver nanoparticles fabricated using cluster beam technique

Hanif

Juluri

Chirumamilla

et al. 2016

J. Polym. Sci. Part B: Polym. Phys.

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“…27 Mechanical deformations can induce the reduction of the empty volumes and, as a consequence, the increase the nanocomposite filling factor.…”

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confidence: 99%

Metal-polymer nanocomposite with stable plasmonic tuning under cyclic strain conditions

Minnai

Milani

2015

Applied Physics Letters

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We report the fabrication and characterization of stretchable nanocomposite films with mechanically tunable surface plasmon resonance. The films have been produced by implantation in a Polydimethylsiloxane substrate of neutral gold nanoparticles aerodynamically accelerated in a supersonic expansion. Optical absorption spectroscopy shows that uniaxial stretching of the nanocomposite induce a reversible redshift of the plasmon peak up to 180 nm from the peak wavelength of the non-stretched sample. The range of the plasmon peak shift depends upon the density of implanted nanoparticles. The optical behavior of the nanocomposite evolves upon cyclical stretching due to the rearrangement of the nanoparticles in the elastomeric matrix. We have identified the fabrication and post-deposition treatment conditions to stabilize the plasmonic shift upon cyclical stretching in order to obtain robust and large area nanocomposites with tunable and reproducible optical properties over a wide visible wavelength range.

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“…Such deep penetration cannot be explained exclusively by the clearing-the-way effect. Using MD simulations, it was suggested that the local thermal and pressure spike generated by the collision facilitate cluster embedding due to an increase of chain mobility [153]. This approach on shallow implantation of metal clusters into polymers paves a way for the formation of composite films with tuneable properties towards diverse applications, which will be addressed in Section 3.4.…”

Section: Sputtering and Implantationmentioning

confidence: 99%

Gas-Phase Synthesis of Functional Nanomaterials

Popok

Kylián

2020

Applied Nano

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Nanoparticles (NPs) of different types, especially those of metals and metal oxides, are widely used in research and industry for a variety of applications utilising their unique physical and chemical properties. In this article, the focus is put on the fabrication of nanomaterials by means of gas-phase aggregation, also known as the cluster beam technique. A short overview of the history of cluster sources development emphasising the main milestones is presented followed by the description of different regimes of cluster-surface interaction, namely, soft-landing, pinning, sputtering and implantation. The key phenomena and effects for every regime are discussed. The review is continued by the sections describing applications of nanomaterials produced by gas aggregation. These parts critically analyse the pros and cons of the cluster beam approach for catalysis, formation of ferromagnetic and superparamagnetic NPs, applications in sensor and detection technologies as well as the synthesis of coatings and composite films containing NPs in research and industrial applications covering a number of different areas, such as electronics, tribology, biology and medicine. At the end, the current state of the knowledge on the synthesis of nanomaterials using gas aggregation is summarised and the strategies towards industrial applications are outlined.

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Neutral-cluster implantation in polymers by computer experiments

Cited by 13 publications

References 42 publications

Poly(methyl methacrylate) composites with size-selected silver nanoparticles fabricated using cluster beam technique

Poly(methyl methacrylate) composites with size-selected silver nanoparticles fabricated using cluster beam technique

Metal-polymer nanocomposite with stable plasmonic tuning under cyclic strain conditions

Gas-Phase Synthesis of Functional Nanomaterials

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