Colored and semitransparent silver nanoparticle layers deposited by spin coating of silver nanoink

Yoon, Hoi Jin; Jo, Yejin; Jeong, Sunho; Lim, Jung Wook; Lee, Seung-Yun

doi:10.7567/apex.11.052302

Cited by 4 publications

(6 citation statements)

References 34 publications

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“…In this work, diffuse reflectance can be influenced by two factors: the roughness surface of the samples and AgNPs content. DBD plasma treatment is a surface treatment able to modify the top-most layers of textile surfaces, increasing the surface roughness without altering the bulk material, which decreases the reflectance values and also improves the mass transfer properties [35,36]. Additionally, the AgNPs on the fabric samples are able to absorb light in the visible spectra.…”

Section: Reflectancementioning

confidence: 99%

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

et al. 2020

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Polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) dispersed in ethanol, water and water/alginate were used to functionalize untreated and dielectric barrier discharge (DBD) plasma-treated polyamide 6,6 fabric (PA66). The PVP-AgNPs dispersions were deposited onto PA66 by spray and exhaustion methods. The exhaustion method showed a higher amount of deposited AgNPs. Water and water-alginate dispersions presented similar results. Ethanol amphiphilic character showed more affinity to AgNPs and PA66 fabric, allowing better uniform surface distribution of nanoparticles. Antimicrobial effect in E. coli showed good results in all the samples obtained by exhaustion method but using spray method only the DBD plasma treated samples displayed antimicrobial activity (log reduction of 5). Despite the better distribution achieved using ethanol as a solvent, water dispersion samples with DBD plasma treatment displayed better antimicrobial activity against S. aureus bacteria in both exhaustion (log reduction of 1.9) and spray (methods log reduction of 1.6) due to the different oxidation states of PA66 surface interacting with PVP-AgNPs, as demonstrated by X-ray Photoelectron Spectroscopy (XPS) analysis. Spray method using the water-suspended PVP-AgNPs onto DBD plasma-treated samples is much faster, less agglomerating and uses 10 times less PVP-AgNPs dispersion than the exhaustion method to obtain an antimicrobial effect in both S. aureus and E. coli.

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Section: Reflectancementioning

confidence: 99%

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

et al. 2020

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“…The equation indicates that the spin time affects the film thickness less significantly than the spin speed, and a similar consideration can be applied to the nanoparticle distribution, replacing the film thickness. This weaker correlation between spin time and nanoparticle distribution was experimentally confirmed in the case of spin-coated Ag nanoparticle layers . Consequently, although spin time is a critical parameter in the spin-coating process, its impact is more marginal than that of spin speed. , When the spin time was shorter than 30 s, a nonuniform colloidal solution film was formed prior to the drying step.…”

Section: Resultsmentioning

confidence: 90%

“…The conversion efficiency of the solar cells increased from 6.68 to 6.71% with the introduction of the nanocomposite film. The enhancement in efficiency can be attributed to the light-scattering property of the nanocomposite structure for the absorber layer, similar to the case of metal nanoparticle layers . The scattered photon traveled an optical path longer than the actual thickness of the absorption layer owing to the light-trapping effect, which resulted in an increased probability of photon absorption and the creation of multiple electron–hole pairs.…”

Section: Resultsmentioning

confidence: 92%

“…The enhancement in efficiency can be attributed to the light-scattering property of the nano- composite structure for the absorber layer, similar to the case of metal nanoparticle layers. 41 The scattered photon traveled an optical path longer than the actual thickness of the absorption layer owing to the light-trapping effect, 63 which resulted in an increased probability of photon absorption and the creation of multiple electron−hole pairs. This effect was supported by the increase in the short-circuit current density (J SC ) in the presence of the nanocomposite film, as indicated by the current density−voltage curves (Figure 7c).…”

Section: Fabrication Ofmentioning

confidence: 99%

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Microstructural Analysis and Optical Property Control of GeTe Chalcogenide-Zirconia Nanoparticle Nanocomposite Films for Device Application

Yoon

Kim

Lee

et al. 2023

ACS Appl. Electron. Mater.

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Phase-change chalcogenide materials are extensively employed in various fields, particularly for electronic and optical applications. In this study, we demonstrated the optical property tuning of germanium telluride (GeTe) chalcogenide-ZrO2 nanocomposite films through microstructural modification using nanoparticle spin-coating and thin film reflow. Pile-up features were observed in the case of spin-coated ZrO2 nanoparticle nanocolloids, which optimized the higher spin speeds to enable the deposition of uniform and high-transmittance ZrO2 nanoparticle layers. Additionally, the capillary-driven mass transport at elevated temperatures resulted in the agglomeration and reflow of GeTe films, particularly in the near-eutectic composition of GeTe(1:4) with reduced thickness. The morphological evolution of the GeTe films was used to fabricate nanocomposite films by sputter depositing the films on spin-coated ZrO2 nanoparticle layers, followed by thermal annealing. The postannealing temperature was crucial for controlling the transmittance, which primarily determined the color of the nanocomposite films. Different colored nanocomposite films were obtained by adjusting the spin speed, GeTe thickness, and postannealing temperature. The results indicated that the application of the developed nanocomposite films to semitransparent photovoltaic devices increased the conversion efficiency owing to the light scattering property of the films, in addition to improving the aesthetic appearance.

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“…Absorber coatings conceived to achieve near perfect absorption at specific wavelength range have been demonstrated by integrating vapor deposited amorphous metamaterials, such as metallic amorphous metasurfaces [26,27] dielectric/metal [28][29][30], semiconductor/metal [24], and metal/metal alloys nanocomposite films [31]. Among these coatings, metallic amorphous metasurfaces are fabricated by sputtering [26], thermal dewetting [32], spin coating [33] approaches, which are straightforward to implement into conventional clean room fabrication processes. However, the optical properties of metallic amorphous metasurfaces are constrained by their surface morphology related to the coating thickness, which is cumbersome to tune with the necessary resolution for different applications.…”

Section: Introductionmentioning

confidence: 99%

Hybrid graphene metasurface for near-infrared absorbers

Rahman¹,

Raza²,

Younes³

et al. 2019

Opt. Express

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We experimentally demonstrated an amorphous graphene-based metasurface yielding near-infrared super absorber characteristic. The structure is obtained by alternatively combining magnetron-sputtering deposition and graphene transfer coating fabrication techniques. The thickness constraint of the physical vapor-deposited amorphous metallic layer is unlocked and as a result, the as-fabricated graphene-based metasurface absorber achieves near-perfect absorption in the near-infrared region with an ultra-broad spectral bandwidth of 3.0 µm. Our experimental characterization and theoretical analysis further point out that the strong light-matter interaction observed is caused by localized surface plasmon resonance of the metal film's particle-like surface morphology. In addition to the enhanced light absorption characteristics, such an amorphous metasurface can be used for surface-enhanced Raman scattering applications. Meanwhile, the proposed graphene-based metasurface relies solely on CMOS-compatible, low cost and large-area processing, which can be flexibly scaled up for mass production.

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Colored and semitransparent silver nanoparticle layers deposited by spin coating of silver nanoink

Cited by 4 publications

References 34 publications

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

Microstructural Analysis and Optical Property Control of GeTe Chalcogenide-Zirconia Nanoparticle Nanocomposite Films for Device Application

Hybrid graphene metasurface for near-infrared absorbers

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