Inkjettable, polydimethylsiloxane based soft electronics

Mikkonen, Riikka; Mäntysalo, Matti

doi:10.1109/fleps49123.2020.9239558

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…184 Further, Mikkonen et al used a flame pyrolytic surface silicating method, where a thin silicon oxide layer was formed on the substrate surface to significantly improve the adhesion of the conductive inks in comparison to the plasma treatment. 185 However, the wettability of the substrate surface is difficult to control since the surface undergoes “hydrophobic recovery”. This “hydrophobic recovery” problem further causes delamination, buckling, mechanical instability, and fracturing of the deposited ink on the substrate in the cyclic loading leading to an irreversible increase in electrical resistances that impede the performance of the printed stretchable circuits.…”

Section: Printing Technologies For Phc Wearable Sensors and Devicesmentioning

confidence: 99%

A review of inkjet printing technology for personalized-healthcare wearable devices

Wankhede

Prasad

et al. 2022

J. Mater. Chem. C

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Section: Printing Technologies For Phc Wearable Sensors and Devicesmentioning

confidence: 99%

A review of inkjet printing technology for personalized-healthcare wearable devices

Wankhede

Prasad

et al. 2022

J. Mater. Chem. C

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“…The authors proposed the use of nitrogen plasma treatments for printing the conductive layers, enhancing its adhesion with the hydrophobic PDMS. Mikkonen et al [ 162 ] studied and compared other methods to improve the adhesion between the ink and the substrate. These methods include other chemical modifications, such as (3-mercaptopropyl)trimethoxysilane (MPTMS) and pyrolytic coatings.…”

Section: Inkjet Printing Technologymentioning

confidence: 99%

An Atlas for the Inkjet Printing of Large-Area Tactile Sensors

Baldini

Albini²,

Maiolino³

et al. 2022

Sensors

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This review aims to discuss the inkjet printing technique as a fabrication method for the development of large-area tactile sensors. The paper focuses on the manufacturing techniques and various system-level sensor design aspects related to the inkjet manufacturing processes. The goal is to assess how printed electronics simplify the fabrication process of tactile sensors with respect to conventional fabrication methods and how these contribute to overcoming the difficulties arising in the development of tactile sensors for real robot applications. To this aim, a comparative analysis among different inkjet printing technologies and processes is performed, including a quantitative analysis of the design parameters, such as the costs, processing times, sensor layout, and general system-level constraints. The goal of the survey is to provide a complete map of the state of the art of inkjet printing, focusing on the most effective topics for the implementation of large-area tactile sensors and a view of the most relevant open problems that should be addressed to improve the effectiveness of these processes.

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“…In this work, we report a facile method for fabricating fully printed, elastomeric capacitive sensors with high flexibility and great sensitivity at a wide pressure range. Earlier, we developed an inkjet printable PDMS solution for multilayer printing of soft electronics [30], and the process was further studied in [31]. However, challenges remained in the realization of uniform conductive layer with good adhesion on top of the printed PDMS layer in these studies.…”

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confidence: 99%

Inkjet-Printed, Nanofiber-Based Soft Capacitive Pressure Sensors for Tactile Sensing

et al. 2021

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The development of soft electronics is critical to the realization of artificial intelligence that comes into direct contact with humans, such as wearable devices, and robotics. Furthermore, rapid prototyping and inexpensive processes are essential for the development of these applications. We demonstrate here an additive, low-cost method for fabricating polydimethylsiloxane based soft electronics by inkjet printing. Herein, a novel approach using a water-soluble polyvinyl alcohol layer as the substrate, inexpensive, fully digital fabrication of capacitive pressure sensors is enabled by sandwiching mesh-like conductive layers and microstructured dielectric in a straightforward, convenient manner. These sensors exhibit improved sensitivity (4 MPa −1 ) at low pressures (<1 kPa) in contrast to sensors with a flat elastomer dielectric and can still detect large pressures around 50 kPa, having excellent long-term repeatability over 2000 cycles, without significant hysteresis (≤8.5 %). The tactile sensing ability of the fabricated devices was demonstrated in a practical application. Moreover, sensor characteristics are easily adjustable, simply by changing printing parameters or tuning the ink solution. The proposed approach provides scalable solution for fabricating high-sensitivity printed sensors for e-skin and human-machine interfaces.

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Inkjettable, polydimethylsiloxane based soft electronics

Cited by 4 publications

References 11 publications

A review of inkjet printing technology for personalized-healthcare wearable devices

A review of inkjet printing technology for personalized-healthcare wearable devices

An Atlas for the Inkjet Printing of Large-Area Tactile Sensors

Inkjet-Printed, Nanofiber-Based Soft Capacitive Pressure Sensors for Tactile Sensing

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