Inkjet printing and surface treatment of an optimized polyurethane-based ink formulation as a suitable insulator over silver for contact with aqueous-based fluids in low-voltage applications

Aminayi, Payam; Young, Brian R.; Young, Teresa L.; Sprowl, Lynza H.; Joyce, Margaret

doi:10.1007/s11998-016-9882-5

Cited by 14 publications

(2 citation statements)

References 23 publications

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“…[ 37 ] Polyurethane inks formulations have been optimized particularly for printing technologies. [ 45 ] These materials are all compatible with different printing or coating techniques. Besides being used as dielectric layers in electronic devices, organic dielectric materials are also used for final encapsulation of printed devices.…”

Section: Developments On Ime Core Technologiesmentioning

confidence: 99%

A review on in‐mold electronics technology

Beltrão

Duarte

Viana

et al. 2022

Polymer Engineering & Sci

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In Mold Decoration (IMD) with printed electronic films combines the printed functional film with the IMD process, creating a product with embedded electronic functions that requires much less space compared to previous technologies. In Mold Electronics (IME) is a process of integrating printed decorations and functional electronics with IMD (i.e., thermoforming and injection molding), resulting in 3D-shaped objects with embedded electronic functions. This technique is a field of recent large technological and scientific interests due to its wide application, aesthetically appealing, and durable and lighter functional products. This paper reviews the state-of-the-art of IME technology, resorting to scientific research work performed and its main outputs, compiling and analyzing the main knowledge and achievements on the process up to date. First, an overview of the IME process steps is given, as well as, its components, main applications, advantages, and drawbacks. The main IME printing technologies are listed, and the relevant material parameters of the foil and of the conductive inks for the printing process are also discussed. The effects of the thermoforming and injection molding steps on the foil behavior and final product are also addressed. Main challenges still to overcome on the IME technology are presented.

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Section: Developments On Ime Core Technologiesmentioning

confidence: 99%

A review on in‐mold electronics technology

Beltrão

Duarte

Viana

et al. 2022

Polymer Engineering & Sci

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“…Inkjet printing technology has rapidly developed in the field of organic electronic devices because of its advantages of low cost, convenience, simplicity, and reliability [15]. Current inkjet printing technology can control the printed droplets at the picoliter level, and the diameter of the droplets formed on the substrate can be controlled at the micrometer level [16], which for the same coffee ring effect at the macroscopic level smaller circles generate a more continuous surface. The films produced by inkjet technology have uniform texture and good repeatability, which improve the performance of organic electronics [17].…”

Section: Introductionmentioning

confidence: 99%

Chemiresistor sensor matrix prepared by full-printing processes

Chen

et al. 2021

Flex. Print. Electron.

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Herein, we report a novel full printing process for fabricating chemiresistor gas sensor matrixes on photographic paper with an inkjet printer. Sensor matrices, which can increase a number of sensors significantly compared to a serial sensor array, were printed on one piece of A4 photographic paper. Each sensor matrix contains 36 interdigital electrodes in an area of less than 11 mm2, which greatly improves the density of the sensor. The basic architecture of the sensor matrix is electrodes that row and column intersecting. In order to insulate the row and column electrodes from meeting each other, an insulating layer needs to be fabricated at the point of intersection between the row and column electrodes. The insulation layer was produced by adjusting the number of printing passes and shape of the printing pattern of color pigment ink. Carbon black (CB) was used to form a chemosensitive composite by changing its resistivity with a specific polymer for the preparation of sensing material. In order to make the sensing material can be printed, it is necessary to disperse CB first. CB was dispersed in aqueous solution with sodium dodecyl sulfate added as a surfactant to lower the surface tension, which enabled printing of CB using an inkjet printer. Some polymers have certain adsorption characteristics for gases. According to the different gas properties, the adsorption characteristics are also different. By adding polyethylene glycol polymer to the CB layer, the response to four gases with different properties is improved. Compared with the drop coating, the full-printing sensors not only reduces the production time significantly, but also improves the gas response magnitude to ethanol by about three times. The results demonstrate that the developed sensor can be used as a low cost, disposable, and easily printable chemical sensor.

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Inkjet Printing Optimization: Toward Realization of High‐Resolution Printed Electronics

Kamarudin,

Abdul Aziz,

Lee

et al. 2024

Adv Materials Technologies

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The printed electronics (PEs) market has witnessed substantial growth, reaching a valuation of USD 10.47 billion in the previous year. Driven by its extensive use in a multitude of applications, this growth trend is expected to continue with a projected compound annual growth rate of 22.3% from 2022 to 2032. Compared to screen printing, the adoption of inkjet printing (IJP) technology to manufacture PEs has been limited to laboratory‐scale research only. The fact that IJP's inability to maintain consistent high‐resolution quality over large printing areas has made transitioning IJP for commercial production arduous. Most of the previous literatures have focused on holistic discussion on material design for IJP, but this review provides insight into key aspects in material processing up to printing optimization to realize high‐resolution PEs. This review also highlights the challenges in controlling the functional ink properties and their interaction with the substrate as well as printing parameters to deliver the desired quality of the droplets and final prints. Imminent application of IJP in PEs and future perspectives are also included in this review.

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Inkjet printing and surface treatment of an optimized polyurethane-based ink formulation as a suitable insulator over silver for contact with aqueous-based fluids in low-voltage applications

Cited by 14 publications

References 23 publications

A review on in‐mold electronics technology

A review on in‐mold electronics technology

Chemiresistor sensor matrix prepared by full-printing processes

Inkjet Printing Optimization: Toward Realization of High‐Resolution Printed Electronics

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