Fully Solution-Processable Fabrication of Multi-Layered Circuits on a Flexible Substrate Using Laser Processing

Ji, Seok Young; Choi, Wonsuk; Kim, Hoon-Young; Jeon, Jinwoo; Cho, Sung-Hak; Chang, Won Seok

doi:10.3390/ma11020268

Cited by 7 publications

(5 citation statements)

References 34 publications

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“…This limitation prevents the integration of multiple functionalities on the device, greatly restricting its practicality. Therefore, it is essential to prioritize the research and design of multilayer flexible electronic devices [ 126 , 127 , 128 , 129 , 130 ] to overcome these limitations and enhance their functionality.…”

Section: Stacking Process: Complex Multilayer Flexible Device Prepara...mentioning

confidence: 99%

A Review of Manufacturing Methods for Flexible Devices and Energy Storage Devices

Han,

Cui,

Liu

et al. 2023

Biosensors

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Given the advancements in modern living standards and technological development, conventional smart devices have proven inadequate in meeting the demands for a high-quality lifestyle. Therefore, a revolution is necessary to overcome this impasse and facilitate the emergence of flexible electronics. Specifically, there is a growing focus on health detection, necessitating advanced flexible preparation technology for biosensor-based smart wearable devices. Nowadays, numerous flexible products are available on the market, such as electronic devices with flexible connections, bendable LED light arrays, and flexible radio frequency electronic tags for storing information. The manufacturing process of these devices is relatively straightforward, and their integration is uncomplicated. However, their functionality remains limited. Further research is necessary for the development of more intricate applications, such as intelligent wearables and energy storage systems. Taking smart wear as an example, it is worth noting that the current mainstream products on the market primarily consist of bracelet-type health testing equipment. They exhibit limited flexibility and can only be worn on the wrist for measurement purposes, which greatly limits their application diversity. Flexible energy storage and flexible display also face the same problem, so there is still a lot of room for development in the field of flexible electronics manufacturing. In this review, we provide a brief overview of the developmental history of flexible devices, systematically summarizing representative preparation methods and typical applications, identifying challenges, proposing solutions, and offering prospects for future development.

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Section: Stacking Process: Complex Multilayer Flexible Device Prepara...mentioning

confidence: 99%

A Review of Manufacturing Methods for Flexible Devices and Energy Storage Devices

Han,

Cui,

Liu

et al. 2023

Biosensors

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“…This technology should aid the development of green electronic components and devices, such as electrical interconnects, flexible sensors, and energy-harvesting devices. In another study, a silver nanoparticle-based ink was printed on a flexible substrate through a solution-processable patterning method to create multilayered electrical circuits using laser sintering combined with laser ablation [68], as shown in Figure 5(c,e,j). Cellulose-based flexible electronics are being explored to improve the biocompatibility of electronic devices.…”

Section: F Manufacturing and Applications Of Flexible Electronic Devicesmentioning

confidence: 99%

Recent Advances in Femtosecond Laser Fabrication: From Structures to Applications

Wen¹,

Yu²,

Zhang³

et al. 2021

IEEE Open J. Nanotechnol.

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Femtosecond laser processing is fast becoming a pervasive method for fabricating micro/nanostructures because it can be used to produce micro/nanostructures on myriads of materials with high precision and resolution, requires little control over environmental conditions, and is simple to implement. Here, we review recent developments in the use of femtosecond lasers for the fabrication of micro/nanostructures through ablation and two-photon polymerization (TPP). Moreover, the applications of some of the fabricated micro/nanostructures are also discussed. We highlight the advantages of femtosecond laser processing by explaining the underlying principles of laser ablation and TPP. We also show the use of this method to fabricate new devices with outstanding performance in several application realm, such as sensors, optical devices, microfluidic chips, and soft robotics.

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“…The nanoscale properties of Ag NPs can significantly enhance the trapping of light due to surface plasmonic effects when incorporated in the interface between the metal and dielectric contacts in thin film solar cells [19,20]. The multilayer patterning of Ag NPs combined with laser sintering and laser ablation was demonstrated for the fabrication of a microcontroller unit [21]. Printed materials are the best example of how the technology can be used to deposit the material in an accurate and controlled manner.…”

Section: Introductionmentioning

confidence: 99%

Ultrashort laser sintering of printed silver nanoparticles on thin, flexible, and porous substrates

Sharif

Farid

McGlynn

et al. 2023

J. Phys. D: Appl. Phys.

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The fabrication of low-cost and mechanically robust flexible electronic patterns has increasingly gained attention due to their growing applications in flexible displays, touch screen panels, medical devices, and solar cells. Such applications require cost-effective deposition of metals in a well-controlled manner potentially using nanoparticles (NPs). The presence of solvent and precursors in NP based inks impacts the electrical conductivity of the printed pattern and a post-processing heating step is typically performed to restore the electrical properties and structure of the material. We report printing with picolitre droplet volumes of silver (Ag) NPs on flexible substrates using an acoustic microdroplet dispenser. The low-cost, controlled deposition of Ag ink is performed at room temperature on photopaper, polyimide and clear polyimide substrates. A localized, ultrashort pulsed laser with minimal heat affected zone is employed to sinter printed Ag patterns. For comparison, oven sintering is performed, and the results are analysed with scanning electron microscopy, four-point probe and Hall measurements. The femtosecond laser sintering revealed highly organized, connected nanostructure that is not achievable with oven heating. A significant decrease in sheet resistance, up to 93% in Ag NPs on clear polyimide confirms the laser sintering improves the connectivity of the printed film and as a result, the electrical properties are enhanced. The surface morphology attained by the laser sintering process is interpreted to be due to a joining of NPs as a result of a solid-state diffusion process in the near surface region of NPs.

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Fully Solution-Processable Fabrication of Multi-Layered Circuits on a Flexible Substrate Using Laser Processing

Cited by 7 publications

References 34 publications

A Review of Manufacturing Methods for Flexible Devices and Energy Storage Devices

A Review of Manufacturing Methods for Flexible Devices and Energy Storage Devices

Recent Advances in Femtosecond Laser Fabrication: From Structures to Applications

Ultrashort laser sintering of printed silver nanoparticles on thin, flexible, and porous substrates

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