Fabrication Approaches for Conducting Polymer Devices

Koutsouras, Dimitrios A.; Bihar, Eloïse; Fairfield, Jessamyn A.; Saadaoui, Mohamed; Malliaras, George G.

doi:10.1002/9783527692958.ch2

Cited by 2 publications

(2 citation statements)

References 92 publications

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“…Screen printing was used as it is a simple and versatile technique well-suited for both the mass production of textiles and rapid prototyping. 45 Descriptions and labels of the screen-printed coatings are shown in Table 2 , with supplier information and properties in Table 3 . To reduce variability during the manual screen-printing process, the same research assistant screen-printed all the coatings.…”

Section: Methodsmentioning

confidence: 99%

Exploring textile-based electrode materials for electromyography smart garments

Lam

Alizadeh-Meghrazi

Schlums

et al. 2022

Journal of Rehabilitation and Assistive Technologies Engineerin

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Introduction In recent years, electromyography (EMG) has been increasingly studied for wearable applications. Conventional gel electrodes for electrophysiological recordings have limited use in everyday applications such as prosthetic control or muscular therapy at home. This study investigates the efficacy and feasibility of dry-contact electrode materials employed in smart textiles for EMG recordings. Methods Dry-contact electrode materials were selected and implemented on textile substrates. Using these electrodes, EMG was recorded from the forearm of able-bodied subjects. 25% and 50% isometric maximum voluntary contractions were captured. A comparative investigation was performed against gel electrodes, assessing the effect of material properties on signal fidelity and strength compared. Results When isolating for electrode surface area and pressure, 31 of the 40 materials demonstrated strong positive correlations in their mean PSD with gel electrodes (r > 95, p < 0.001). The inclusion of ionic liquids in the material composition, and using raised or flat electrodes, did not demonstrate a significant effect in signal quality. Conclusions For EMG dry-contact electrodes, comparing the performance against gel electrodes for the application with the selected material is important. Other factors recommended to be studied are electrodes’ durability and long-term stability.

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Section: Methodsmentioning

confidence: 99%

Exploring textile-based electrode materials for electromyography smart garments

Lam

Alizadeh-Meghrazi

Schlums

et al. 2022

Journal of Rehabilitation and Assistive Technologies Engineerin

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“…In order to adapt OECT fabrication methods to meet the requirements of the large range of applications where their amplification power and versatility could be exploited, a great effort has focused on exploring different printing techniques for the fabrication of high-performance OECTs. For a thorough overview of these different printing techniques, a recent review can be consulted [ 22 ]. These approaches are primarily aimed at flexible and wearable applications.…”

Section: Physical Characterization: Figure Of Merit (Fom) Modelinmentioning

confidence: 99%

Organic Electrochemical Transistors (OECTs) Toward Flexible and Wearable Bioelectronics

2020

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Organic electronics have emerged as a fascinating area of research and technology in the past two decades and are anticipated to replace classic inorganic semiconductors in many applications. Research on organic light-emitting diodes, organic photovoltaics, and organic thin-film transistors is already in an advanced stage, and the derived devices are commercially available. A more recent case is the organic electrochemical transistors (OECTs), whose core component is a conductive polymer in contact with ions and solvent molecules of an electrolyte, thus allowing it to simultaneously regulate electron and ion transport. OECTs are very effective in ion-to-electron transduction and sensor signal amplification. The use of synthetically tunable, biocompatible, and depositable organic materials in OECTs makes them specially interesting for biological applications and printable devices. In this review, we provide an overview of the history of OECTs, their physical characterization, and their operation mechanism. We analyze OECT performance improvements obtained by geometry design and active material selection (i.e., conductive polymers and small molecules) and conclude with their broad range of applications from biological sensors to wearable devices.

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Fabrication Approaches for Conducting Polymer Devices

Cited by 2 publications

References 92 publications

Exploring textile-based electrode materials for electromyography smart garments

Exploring textile-based electrode materials for electromyography smart garments

Organic Electrochemical Transistors (OECTs) Toward Flexible and Wearable Bioelectronics

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