Recent advances in inkjet-printing technologies for flexible/wearable electronics

Sun, Bin; Liu, Yu; Zhu, Hongze; Liu, Xing; Bu, Qingkai; Ren, Dayong

doi:10.1039/d2nr05649f

Cited by 38 publications

(16 citation statements)

References 184 publications

(337 reference statements)

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“…(5) Enabling printing on flexible substrates enhances the adaptability to curved surfaces, especially in wearable applications. Consequently, the distinct advantages of the inkjet printing method make it an appealing alternative to traditional methods, particularly when efficiency, affordability, and precision are paramount considerations. − For instance, Li et al used printing methods to create a soft triboelectric nanogenerator for energy harvesting and tactile sensing, and Seol et al introduced an all-printed TENG with Ag grating electrodes …”

Section: Introductionmentioning

confidence: 99%

Smart Printed Triboelectric Wearable Sensor with High Performance for Glove-Based Motion Detection

Seifaddini,

Sheikhahmadi,

Kolahdouz

et al. 2024

ACS Appl. Mater. Interfaces

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In a world increasingly driven by data, wearable triboelectric nanogenerators (TENGs) offer a convenient way to monitor and collect information about human body motions. To meet the demands of the large-scale production of wearable TENGs, material selection to realize a high conversion efficiency and simplify the fabrication process remains a challenge. To address these issues, we present a simple-structured wearable printed arcshaped triboelectric sensor (PATS) for finger motion detection by leveraging inkjet printing technology. In this regard, pressure sensors composed of diverse materials based on dielectric− dielectric and metal−dielectric structures in contact-separation mode were fabricated and compared. Thanks to the unique characteristics of the silver nanoparticle (Ag-NP)-printed layer and silicon rubber (SR), the SR−Ag PATS shows a high peak-to-peak voltage of 14.15 V and a short-circuit current of 0.78 μA. The proposed sensor with the capability of accurately identifying finger motions at various bending angles suggests promising application potential in glove-based human−machine interface (HMI) systems.

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Section: Introductionmentioning

confidence: 99%

Smart Printed Triboelectric Wearable Sensor with High Performance for Glove-Based Motion Detection

Seifaddini,

Sheikhahmadi,

Kolahdouz

et al. 2024

ACS Appl. Mater. Interfaces

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“…9,10 One of the design concepts driving flexible wearable electronics is to achieve performance modulation, particularly in terms of stretchability and conductivity, by integrating the patterned conductive structures onto flexible substrates. 10−14 The leading technologies for processing conductive structures on flexible substrates include transfer printing, 13,15−17 3D printing, 18−21 laser etching, 22,23 inkjet printing, 24,25 etc. 25−28 Transfer printing is becoming a dominant technology for flexible electronics due to its simplicity and cost-effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Wafer-Recyclable, Eco-Friendly, and Multiscale Dry Transfer Printing by Transferable Photoresist for Flexible Epidermal Electronics

Zhou,

Feng,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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Flexible electronics have been of great interest in the past few decades for their wide-ranging applications in health monitoring, human−machine interaction, artificial intelligence, and biomedical engineering. Currently, transfer printing is a popular technology for flexible electronics manufacturing. However, typical sacrificial intermediate layer-based transfer printing through chemical reactions results in a series of challenges, such as time consumption and interface incompatibility. In this paper, we have developed a time-saving, wafer-recyclable, eco-friendly, and multiscale transfer printing method by using a stable transferable photoresist. Demonstration of photoresist with various, high-resolution, and multiscale patterns from the donor substrate of silicon wafer to different flexible polymer substrates without any damage is conducted using the as-developed dry transfer printing process. Notably, by utilizing the photoresist patterns as conformal masks and combining them with physical vapor deposition and dry lift-off processes, we have achieved in situ fabrication of metal patterns on flexible substrates. Furthermore, a mechanical experiment has been conducted to demonstrate the mechanism of photoresist transfer printing and dry lift-off processes. Finally, we demonstrated the application of in situ fabricated electrode devices for collecting electromyography and electrocardiogram signals. Compared to commercially available hydrogel electrodes, our electrodes exhibited higher sensitivity, greater stability, and the ability to achieve long-term health monitoring.

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“…of the corresponding devices. [2][3][4][5] The traditional sensors, which are generally fabricated by metal or semiconductors, have difficulty attaching to non-flat skin due to their inherent rigidity. [6][7][8][9] Flexible electronics are stretchable, lightweight, and able to fit well with rough skin.…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Carbon Nanocolloid‐Silver Composite Ink for the Application of All Inkjet‐Printed Wearable Electronics

Chen,

Yang,

Luo

et al. 2023

Advanced Sensor Research

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Currently, owing to the increasing demand for continuous monitoring of health status, it is highly expected to develop functional sensors with satisfied performance. However, traditional sensors generally suffer from the disadvantages of inherent rigidity, limited range, and complicated fabricating methods, failing to provide the required detection. Well‐developed printing technologies have opened a new era for fabricating electronics. The advantages of flexibility, easy scalability, and high resolution endow inkjet printing with the ability to manufacture devices with desired properties. In this work, a green carbon nanocolloid‐silver composite ink is facilely prepared and successfully applied in inkjet printing of strain sensors. Good performance such as high sensitivity (a gauge factor of 267.5), fast response (114 ms), long service life, and outstanding stability (>3000) is demonstrated for the as‐fabricated sensors. Moreover, the printed sensors are revealed to be capable of monitoring multiscale human motions for practical application as a wearable device.

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Recent advances in inkjet-printing technologies for flexible/wearable electronics

Abstract: The rapid development of flexible/wearable electronics requires novel fabricating strategies. Among the state-of-the-art techniques, inkjet printing has now aroused great interest due to the possibility of large-scale fabricating flexible electronic...

Cited by 38 publications

References 184 publications

Smart Printed Triboelectric Wearable Sensor with High Performance for Glove-Based Motion Detection

Smart Printed Triboelectric Wearable Sensor with High Performance for Glove-Based Motion Detection

Wafer-Recyclable, Eco-Friendly, and Multiscale Dry Transfer Printing by Transferable Photoresist for Flexible Epidermal Electronics

Facile Fabrication of Carbon Nanocolloid‐Silver Composite Ink for the Application of All Inkjet‐Printed Wearable Electronics

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