Synthesis and Deposition of Ag Nanoparticles by Combining Laser Ablation and Electrophoretic Deposition Techniques

Fernández-Arias, Mónica; Zimbone, Massimo; Boutinguiza, M.; Val, J. del; Riveiro, A.; Grimaldi, Maria Grazia; Pou, J.

doi:10.3390/coatings9090571

Cited by 13 publications

(7 citation statements)

References 36 publications

(38 reference statements)

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“…Colloidal NPs can be uniformly deposited on a flat substrate surface by spin coating, which requires highly concentrated NP solutions with viscous organic matrix [ 3 ], electrophoretic deposition techniques with required electrically conductive surface [ 4 ], and centrifugation [ 5 ]. Drop casting, on the other hand, is a viable alternative bottom-up technique for the simple and inexpensive fabrication of thin nanogranular solid films with limited controllability, which has the potential to become a large-scale coating method.…”

Section: Introductionmentioning

confidence: 99%

Photothermal Effects and Heat Conduction in Nanogranular Silicon Films

et al. 2021

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We present results on the photothermal (PT) and heat conductive properties of nanogranular silicon (Si) films synthesized by evaporation of colloidal droplets (drop-casting) of 100 ± 50 nm-sized crystalline Si nanoparticles (NP) deposited on glass substrates. Simulations of the absorbed light intensity and photo-induced temperature distribution across the Si NP films were carried out by using the Finite difference time domain (FDTD) and finite element mesh (FEM) modeling and the obtained data were compared with the local temperatures measured by micro-Raman spectroscopy and then was used for determining the heat conductivities k in the films of various thicknesses. The cubic-to-hexagonal phase transition in Si NP films caused by laser-induced heating was found to be heavily influenced by the film thickness and heat-conductive properties of glass substrate, on which the films were deposited. The k values in drop-casted Si nanogranular films were found to be in the range of lowest k of other types of nanostructurely voided Si films due to enhanced phonon scattering across inherently voided topology, weak NP-NP and NP-substrate interface bonding within nanogranular Si films.

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Section: Introductionmentioning

confidence: 99%

Photothermal Effects and Heat Conduction in Nanogranular Silicon Films

et al. 2021

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“…Most of the literature reports demonstrate the formation of small, spherical silver nanoparticles in the presence of various biopolymers, such as starch, gelatin, and cellulose [17][18][19]. Heterostructured silver nanoparticles are reported mainly while following the plant mediated synthesis protocols [20], using stabilizers which has the ability to limit the growth of certain crystallographic planes of nanoparticles [21] and in some physical synthesis protocols [22]. Sodium alginate has also been used as a capping and reducing agent for the synthesis of silver nanoparticles [23].…”

Section: Introductionmentioning

confidence: 99%

Alginate-Mediated Synthesis of Hetero-Shaped Silver Nanoparticles and Their Hydrogen Peroxide Sensing Ability

Mohan

Krupa

2020

Molecules

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A new method for the simple synthesis of stable heterostructured biopolymer (sodium alginate)-capped silver nanoparticles (Ag-NPs) based on green chemistry is reported. The as-prepared nanoparticles were characterized using the ultraviolet-visible (UV-Vis) absorption spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS) techniques. The results showed that the as-prepared Ag-NPs have a heterostructured morphology with particle size in the range 30 ± 18–60 ± 25 nm, showing a zeta potential of −62 mV. The silver nanoparticle formation was confirmed from UV-Vis spectra showing 424 nm as maximum absorption. The particle size and crystallinity of the as-synthesized nanoparticles were analyzed using TEM and XRD measurements, respectively. FTIR spectra confirmed the presence of alginate as capping agent to stabilize the nanoparticles. The Ag-NPs also showed excellent sensing capability, with a linear response to hydrogen peroxide spanning a wide range of concentrations from 10−1 to 10−7 M, which indicates their high potential for water treatment applications, such as pollution detection and nanofiltration composites.

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“…The paper "Synthesis and Deposition of Ag Nanoparticles by Combining Laser Ablation and Electrophoretic Deposition Techniques" by Fernández-Arias et al presents the production of uniform silver nanostructured thin films on silicon substrate by pulsed laser ablation in liquid (PLAL) and electrophoretic deposition (ED) techniques [3]. During the ablation process in aqueous media, the silver target constitutes the positive electrode, while the silicon substrate is the negative electrode.…”

Section: Surface Treatment By Laser-assisted Techniquesmentioning

confidence: 99%