Electrical Characterization of Thin PEDOT:PSS Films on Alumina and Thiol–Ene Substrates

Jucius, Dalius; Gudaitis, Rimantas; Lazauskas, Algirdas; Grigaliūnas, V.

doi:10.3390/polym13203519

Cited by 2 publications

(1 citation statement)

References 52 publications

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“…In fact, it was reported that higher surface roughness leads to higher electrical resistance. [ 64,65 ] In Figure 8, it can be observed that the reduction of electrical resistance (from 66.9 to 8 M Ω) due to thickness increase is also followed by the reduction of the standard deviation (from 34.3 to 1.6 M Ω) (Figure 8a). This confirms the hypothesis that higher film thickness allows improving the electrical parameters of the system due to reducing the effect of high roughness values (Figure 8b).…”

Section: Resultsmentioning

confidence: 99%

Deposition of PEDOT:PSS via Atmospheric Pressure Plasma Torch

Arkhangelskiy,

Quaranta,

Pancheri

et al. 2023

Adv Eng Mater

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Creating conductive biocompatible coatings with enhanced stability and adhesion can be achieved with cold plasma‐assisted processes, that provide surface modification, and assisted polymerization at mild conditions and room temperature. Here, we report a novel method for the controlled deposition of conductive polymer poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on substrates with different characteristics:, polyethylene terephthalate (PET), poly(dimethylsiloxane) (PDMS), and soda‐lime glass. The plasma deposited PEDOT:PSS films were studied by atomic force microscopy (AFM), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy, and tested for stability and adhesion. The electrical resistance was obtained by a 4‐point probe station in order to investigate the influence of plasma reaction and etching mechanism on the reproducibility of the electrical parameters. The proposed method was also successfully developed for the deposition of stacked layers structures, with the aim to design basic passive electrical components, such as a resistor or a capacitor. The possibility of realizing complex shapes by selective area deposition can enable the realization of advanced biosensor devices.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Deposition of PEDOT:PSS via Atmospheric Pressure Plasma Torch

Arkhangelskiy,

Quaranta,

Pancheri

et al. 2023

Adv Eng Mater

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Design Optimization of Printed Multi-Layered Electroactive Actuators Used for Steerable Guidewire in Micro-Invasive Surgery

Toinet,

Benwadih,

Szambolics

et al. 2024

Materials

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To treat cardiovascular diseases (i.e., a major cause of mortality after cancers), endovascular-technique-based guidewire has been employed for intra-arterial navigation. To date, most commercially available guidewires (e.g., Terumo, Abbott, Cordis, etc.) are non-steerable, which is poorly suited to the human arterial system with numerous bifurcations and angulations. To reach a target artery, surgeons frequently opt for several tools (guidewires with different size integrated into angulated catheters) that might provoke arterial complications such as perforation or dissection. Steerable guidewires would, therefore, be of high interest to reduce surgical morbidity and mortality for patients as well as to simplify procedure for surgeons, thereby saving time and health costs. Regarding these reasons, our research involves the development of a smart steerable guidewire using electroactive polymer (EAP) capable of bending when subjected to an input voltage. The actuation performance of the developed device is assessed through the curvature behavior (i.e., the displacement and the angle of the bending) of a cantilever beam structure, consisting of single- or multi-stack EAP printed on a substrate. Compared to the single-stack architecture, the multi-stack gives rise to a significant increase in curvature, even when subjected to a moderate control voltage. As suggested by the design framework, the intrinsic physical properties (dielectric, electrical, and mechanical) of the EAP layer, together with the nature and thickness of all materials (EAP and substrate), do have strong effect on the bending response of the device. The analyses propose a comprehensive guideline to optimize the actuator performance based on an adequate selection of the relevant materials and geometric parameters. An analytical model together with a finite element model (FEM) are investigated to validate the experimental tests. Finally, the design guideline leads to an innovative structure (composed of a 10-stack active layer screen-printed on a thin substrate) capable of generating a large range of bending angle (up to 190°) under an acceptable input level of 550 V, which perfectly matches the standard of medical tools used for cardiovascular surgery.

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Electrical Characterization of Thin PEDOT:PSS Films on Alumina and Thiol–Ene Substrates

Cited by 2 publications

References 52 publications

Deposition of PEDOT:PSS via Atmospheric Pressure Plasma Torch

Deposition of PEDOT:PSS via Atmospheric Pressure Plasma Torch

Design Optimization of Printed Multi-Layered Electroactive Actuators Used for Steerable Guidewire in Micro-Invasive Surgery

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