Ultrasonic Spray Coating as a Fast Alternative Technique for the Deposition of Hybrid Magnetic‐Plasmonic Nanocomposites

Stryckers, Jeroen; Swusten, Tom; Brullot, Ward; D’Haen, Jan; Verbiest, Thierry; Deferme, Wim

doi:10.1002/adem.201800681

Cited by 8 publications

(7 citation statements)

References 19 publications

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“…The typical viscosity range for the ink used in spray coating is 0.1-100 cP. [113,147,195] There are three typical types of spray coating techniques, namely airbrush spray deposition, [196] ultrasonic spray deposition, [197] and electrospray deposition. [198] The main difference among them lies in the specific process for dispersing the functional inks into microdroplets and forming an aerosol.…”

Section: Spray Coatingmentioning

confidence: 99%

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Ink‐Based Additive Nanomanufacturing of Functional Materials for Human‐Integrated Smart Wearables

2020

Advanced Intelligent Systems

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Human-integrated devices include wearable and implantable devices for monitoring vital human signals or interacting with the human body. [1-3] The human-integrated devices needed to be tethered to the organs or the human skin for implementing their functions such as sensing and energy harvesting. [4-18] The economical, agile, customizable manufacturing, and integration of multifunctional device modules into networked systems with mechanical compliance and robustness will enable unprecedented human-integrated smart wearables [19-23] and usher in exciting opportunities in emerging technologies such as electronics, [24-29] wearable computation, [30-36] human-machine interface, [37-42] robotics, [43-48] and advanced healthcare. [49-54] The fabrication of stateof-the-art microelectronics involves hightemperature processing steps, which are generally incompatible with the flexible substrates (e.g., paper, polymer, fiber, etc.) [55-61] widely used in the wearable devices. Moreover, the current microfabrication technologies are not well positioned to process the emerging functional nanomaterials (e.g., nanowires [NWs] and 2D materials). [62-65] Such incomparability severely limits the pace of deploying these emerging materials (despite their unprecedented properties) in wearable and flexible device technologies. The additive manufacturing (AM) processes have emerged as potential candidates for addressing the earlier limitations of the current microfabrication technologies in fabricating flexible/wearable printed devices with diversified functionalities, e.g., energy harvesting/storage, sensing, actuation, and computation, leveraging advantages such as maskless processing, versatile ink formulation, low cost, low processing temperature, and scalability. [66-71] Researchers have devoted tremendous efforts to develop the related technologies, and several reviews have provided excellent discussions on the material formulation and process aspects of AM techniques. [63,72-79] However, to our best knowledge, there are few review reports about the ink-based additive nanomanufacturing of functional materials for human-integrated smart wearables. To fill this gap, here we review the recent progress in ink-based

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Section: Spray Coatingmentioning

confidence: 99%

“…[199] An ultrasonic nozzle is used in the ultrasonic spray deposition technique for such a purpose. [187,197] In electrospray deposition, a high voltage is used instead to disperse inks. [198,200] A liquid reaching the printhead will form a Taylor cone and emit a liquid jet through its tip.…”

Section: Spray Coatingmentioning

confidence: 99%

Ink‐Based Additive Nanomanufacturing of Functional Materials for Human‐Integrated Smart Wearables

2020

Advanced Intelligent Systems

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“…Ultrasonic atomization-assisted spray coating has been used to fabricate various functional films, such as magnetic-optics, [26] layers in electronic devices, [27] and thin-film solar cells. [28,29] Compared with the conventional pneumatic approach, ultrasonic atomization, which utilizes electromechanical devices to achieve atomization, results in much finer spraying droplets whose dimensions can be precisely adjusted at the micrometer level.…”

Section: Doi: 101002/adem202000462mentioning

confidence: 99%

On a Highly Reproducible, Broadband Nanocomposite Ultrasonic Film Sensor Fabricated by Ultrasonic Atomization‐Assisted Spray Coating

et al. 2020

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In the last couple of decades, attaching sensors permanently onto in-service engineering structures has been a key strategy for conducting in situ structural integrity assessments. [1-4] In this respect, a wide range of sensors, which include but are not limited to optical fibers, [5,6] piezoelectric transducers, [7-9] electromagnetic acoustic transducers, [10,11] and polyvinylidene fluoride film sensors, [12,13] have been used in practice. However, the existing technologies suffer from various limitations, which include narrow frequency bandwidth, redundant volume and mass, high cost, and stringent requirements on coupling. In pursuit for improved sensing systems, sensors that are lightweight, flexible, cost effective, convenient to fabricate, and sensitive over a broad frequency range have attracted much R&D effort. Carbon nanoparticle-based composite materials, which emerged from recent research, have demonstrated the potential for satisfying the demands of modern sensing systems. The nanostructures of these materials are piezoresistive, such that the overall electrical resistance of a material varies with mechanical deformations. This is mainly attributed to 1) the inherent piezoresistivity of the nanofillers in the material, and changes in 2) the macroscopic resistances and 3) the quantum tunneling resistances between adjacent nanofillers when the distances between the nanofillers change with mechanical deformations. The latter phenomenon is known as the quantum tunneling effect. Wearable strain sensors that are fabricated from carbon nanocomposite materials [14-16] exhibit abundant merits, which include negligible weight, high physical flexibility, remarkable manufacturability, and outstanding sensitivity to microscopic deformations. These attractive features also render carbon nanocomposite materials promising candidates for sensors that are used to monitor conditions of engineering structures. [16-19] It has been shown on many occasions that carbon nanocomposite sensors can be highly sensitive to ultrasonic waves, capable of responding to dynamic strains down to the microscale with frequencies up to hundreds of kilohertz. [20] Also, it is believed that for sensing strains in the ultrasonic regime, the quantum tunneling effect plays the dominant role in determining the piezoresistive responses of the sensors. [21] Nanocomposite ultrasonic sensors are mainly fabricated from three different types of carbon nanofillers, namely, carbon black

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“…We use ultrasonic spray coating, which is employed in various emerging applications, including solar cells, [20,21] organic light-emitting devices, [22] and electrodes [23,24] and it proved to be a viable technique allowing rapid deposition of large surfaces with nanoparticles. [25] This article presents an experimental investigation on recycled rubber coated with different types of graphene and different coating layers. The samples were made using 50% recycled rubber from tires and 50% NR.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Graphene Ultrasonic Coating on Recycled Rubber

Marsico

Monsalve

et al. 2022

Adv Eng Mater

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Herein, the mechanical behavior of a graphene‐recycled rubber compound is investigated by performing static and dynamic tests. Water‐based graphene suspension is deposited on recycled rubber pads via an electrostatic addition process. Results on tensile and compression tests indicate a significant improvement of the compound in strength and in damping. They also indicate that the compound experiences significant elongation (up to 500%) as well as withstands high tensile forces, 300% greater than the force that the recycled rubber mix would withstand. The effective compression modulus of the compound is also shown to increase by about 3.2 times at 10% strain with respect to the one for the recycled rubber mix. Results suggest that the graphene‐recycled rubber compound can deliver a sustainable solution for vibration mitigation applications.

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Ultrasonic Spray Coating as a Fast Alternative Technique for the Deposition of Hybrid Magnetic‐Plasmonic Nanocomposites

Cited by 8 publications

References 19 publications

Ink‐Based Additive Nanomanufacturing of Functional Materials for Human‐Integrated Smart Wearables

Ink‐Based Additive Nanomanufacturing of Functional Materials for Human‐Integrated Smart Wearables

On a Highly Reproducible, Broadband Nanocomposite Ultrasonic Film Sensor Fabricated by Ultrasonic Atomization‐Assisted Spray Coating

The Effect of Graphene Ultrasonic Coating on Recycled Rubber

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