Multinozzle electrospray method for high-throughput and uniform coating: Application of superhydrophobic coating

Mosa, Md. Abu; Kim, Se Hyun; Kwon, Kye‐Si

doi:10.1007/s11998-022-00725-8

Cited by 5 publications

(5 citation statements)

References 42 publications

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“…The superhydrophobicity of an electrosprayed coating using silica ink was shown in our previous work. 48 While the deposition method significantly differs from AJP, the overall robustness appears to be comparable. Nonetheless, it is essential to assess the extent of the superhydrophobic characteristics exhibited by AJP-deposited layers.…”

Section: Results and Discussionmentioning

confidence: 97%

“…The wettability of a solid surface characterizes how much a liquid droplet (such as water) spreads on that solid, and is determined by two primary factors: surface energy and solid roughness. , A high surface energy promotes liquid spreading, whereas a low surface energy hinders droplet spread. Considering that the printing material employed in this study is a silica suspension, the presence of silica nanoparticles can induce surface roughness and improve antisurface wetting properties. , This phenomenon contributes to the creation of a superhydrophobic surface characterized by its ability to completely repel water and resist wetting. The micro- and nanostructure roughness can cause total drop repellency by trapping air under water drop placed on the solid surface.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The superhydrophobicity of an electrosprayed coating using silica ink was shown in our previous work . While the deposition method significantly differs from AJP, the overall robustness appears to be comparable.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Considering that the printing material employed in this study is a silica suspension, the presence of silica nanoparticles can induce surface roughness and improve antisurface wetting properties. 20 , 48 This phenomenon contributes to the creation of a superhydrophobic surface characterized by its ability to completely repel water and resist wetting. The micro- and nanostructure roughness can cause total drop repellency by trapping air under water drop placed on the solid surface.…”

Section: Results and Discussionmentioning

confidence: 99%

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Achieving Selective Wettability Surface through Aerosol Jet Hydrophobic Line Printing

Akuoko,

Mosa,

et al. 2024

ACS Omega

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Selective wettability surface patterning, involving the combination of wetting and nonwetting surface features in an alternating manner, has emerged as a key surface control technique with broad applications in cell microarrays, microfluidics, and drop placement. However, traditional approaches to creating such patterns often suffer material waste and rely on masking substrate surfaces with predesigned templates, resulting in elevated costs. Here, we present an approach to achieve selective wettability surface patterning using aerosol jet printing that offers a solution to these challenges. Our method involves the precise deposition of atomized, hydrophobic silica nanoparticle droplets onto substrate surfaces. By directing these atomized droplets, we created well-defined hydrophobic lines. The individual lines have an average width of 60 μm and a thickness of 1.32 μm, which, when overlaid, form a complete superhydrophobic surface with a water contact angle of 154°. The implications of these findings are substantial for various applications. We accordingly show the applicability of our method for confining drops and demonstrate on-target waterproofing of electronic circuit lines.

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Section: Results and Discussionmentioning

confidence: 97%

Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Achieving Selective Wettability Surface through Aerosol Jet Hydrophobic Line Printing

Akuoko,

Mosa,

et al. 2024

ACS Omega

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“…On the contrary, electrospray entails the atomization of ink droplets and is commonly used for coating applications rather than direct printing. This entails distinctions in parameters such as voltage, stand-off distance, and ink viscosity when compared to electrospinning 17 , 18 .…”

Section: Introductionmentioning

confidence: 99%

Fine conductive line printing of high viscosity CuO ink using near field electrospinning (NFES)

Rahman,

Lee,

Kwon

2023

Sci Rep

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Modern printed electronics applications require patterning of fine conductive lines of sufficient thickness. However, the two requirements for pattern width and thickness are a trade-off. To print fine pattern at a micrometer size, the nozzle diameter must be approximately the size of the pattern width, so only low-viscosity inks are used. As a result, the pattern is likely to be very thin and multiple overlapping printing is required for sufficient conductance. In order to use high viscosity ink for fine patterning, near field electrospinning (NFES) is attracting attention because it can print very thin and thick patterns using large nozzles (high-viscosity ink). Until now, silver paste ink has been used for microconductive patterning using electrospinning. However, Ag nanoparticle (NP) inks are expensive. In this study, we report the use of a relatively inexpensive CuO NP ink for electrospinning-based printing. For implementation, the material preparation, printing and post-processing process are discussed. For post-processing, a continuous wave (CW) green laser with a 532 nm wavelength was used to reduce the CuO to Cu and sinter the nanoparticles. After sintering, the 50 μm width and 1.48 μm thick Cu conductive line exhibited a resistivity of 5.46 μΩ·cm, which is 3.25 times of the bulk resistivity of Cu.

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Response surface methodology-based multi-nozzle optimization for electrospray cooling

Yakut

2024

Applied Thermal Engineering

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Multinozzle electrospray method for high-throughput and uniform coating: Application of superhydrophobic coating

Cited by 5 publications

References 42 publications

Achieving Selective Wettability Surface through Aerosol Jet Hydrophobic Line Printing

Achieving Selective Wettability Surface through Aerosol Jet Hydrophobic Line Printing

Fine conductive line printing of high viscosity CuO ink using near field electrospinning (NFES)

Response surface methodology-based multi-nozzle optimization for electrospray cooling

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