PEDOT:PSS-based screen-printable inks for H2O2 electrochemical detection

Campos-Arias, Lia; del-Olmo, Rafael; Peřinka, Nikola; Casado, Nerea; Vilas-Vilela, José Luis; Mecerreyes, David; Javier-del-Campo, Francisco; Lanceros‐Méndez, S.

doi:10.1016/j.electacta.2022.141615

Cited by 8 publications

(6 citation statements)

References 45 publications

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“…A thin layer (100 μm thickness) of iota-carrageenan with different IL ([EMIM][SCN]) loadings was deposited to cover the working, auxiliary, and pseudoreference electrodes of screen-printed PEDOT:PSS (1:1w/w) electrodes (Figure ). Spectroelectrochemical experiments were carried out using a SPELEC UV–vis spectroelectrochemistry instrument (Metrohm-Dropsens, ES) controlled by DropView SPELEC software (version 3.0) . Unless otherwise stated, all potentials are reported versus Ag.…”

Section: Methodsmentioning

confidence: 99%

“…Spectroelectrochemical experiments were carried out using a SPELEC UV–vis spectroelectrochemistry instrument (Metrohm-Dropsens, ES) controlled by DropView SPELEC software (version 3.0). 23 Unless otherwise stated, all potentials are reported versus Ag. In all cases, the open circuit potential was determined to ensure that all subsequent experiments started at a zero-current level.…”

Section: Methodsmentioning

confidence: 99%

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High-Performance Sustainable Electrochromic Devices Based on Carrageenan Solid Polymer Electrolytes with Ionic Liquid

Serra

Salado

Correia

et al. 2023

ACS Appl. Eng. Mater.

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The development of sustainable functional materials with strong potential to be applied in different areas has been growing and gaining increasing interest to address the environmental impact of current materials and technologies. In this scope, this work reports on sustainable functional materials with electrochromic properties, based on their increasing interest for a variety of applications, including sensing technologies. The materials have been developed based on a natural derived polymer, carrageenan, in which different amounts of the ionic liquid (IL) 1-ethyl-3-methylimidazolium thiocyanate ([EMIM][SCN]) were blended. It is shown that the addition of different amounts of IL to the carrageenan matrix does not affect the properties of the samples in terms of morphology or physicochemical and thermal properties, the most significant difference being the increase of the ionic conductivity with increasing IL content, ranging from 2.3 × 10–11 S·cm–1 for pristine carrageenan to 4.6 × 10–4 S·cm–1 for the samples with 5 and 60 wt % IL content, respectively. A electrochromic device has been developed based on the different IL/carrageenan samples as electrolyte and poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS) as electrodes. Spectroelectrochemistry testing demonstrates functional devices at low voltages between 0.3 and −0.9 V. Among the different samples, the one with 15 wt % IL content presents the best conditions for application, presenting an oxidation time of 6 s, a reduction time of 8 s, and a charge density of 1150 and 1050 μC·cm–2 for oxidation and reduction, respectively. The same sample also presents excellent optical density as a function of load density, presenting an optical switch (Δ%Tx) of 99%. Thus, it is demonstrated that it is possible to develop high efficiency and sustainable electrochromic devices based on natural polymers and ionic liquids.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

High-Performance Sustainable Electrochromic Devices Based on Carrageenan Solid Polymer Electrolytes with Ionic Liquid

Serra

Salado

Correia

et al. 2023

ACS Appl. Eng. Mater.

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“…Copper electric cables and the silver paint were used for interconnection to ensure electrical conductivity. For the skin-interfaced system, a soft dry-adhesive film was prepared [26] . This preparation involved mixing liquid state [10:1 (w/w) ratio of prepolymer to curing agent] with 2.5 wt% Tween 80.…”

Section: Preparation Of the Skin-interfaced Energy Harvesting Systemmentioning

confidence: 99%

Soft Schottky diodes for skin-interfaced electronics enabled by entirely soft components

Shin,

Kim,

Park

et al. 2024

Soft Sci

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Soft electronics have achieved significant development, attracting substantial interest due to their promising potential as a dominant form of future electronics. In this rapidly evolving field, the fully soft Schottky diode plays a critical role as a fundamental building block for electronic circuitry systems. These systems, constructed entirely from soft materials, can tolerate various mechanical deformations when interfaced with human skin, making them ideal for use in health monitoring systems and interactive human-machine interfaces. In this study, we introduce a Schottky diode fabricated entirely from soft materials using a facile solution process, further enabling all-printing fabrication systems. Utilizing the mechanical softness of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate-based soft electrode, poly(3-hexylthiophene) nanofibril composite soft semiconductor, and liquid metal, we successfully fabricated a fully soft Schottky diode. This diode exhibits exceptional electrical characteristics even under various mechanical deformations, showcasing the high durability of the device. We have further developed fully soft rectifiers and logic gates, highlighting the versatility of our study. By incorporating these devices with a piezoelectric nanogenerator in a skin-interfaced energy harvesting system, they exhibit sufficient capability for rectification, ensuring a stable power supply as part of a power supply management system. This approach offers substantial potential for future skin-interfaced electronics, paving the way for advanced wearable technology.

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“…Conductive polymers are beneficial materials in flexible electronics. PEDOT:PSS (poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate)) is extensively utilized in electronic materials, energy conversion, sensors, biomedicine, and optical devices as the most commercially successful conductive polymers due to their excellent properties, including high electrical conductivity, optical transparency, flexibility, and thermal stability. , Studies on PEDOT:PSS applications in combination with printable electronics have been reported especially in sensors; − however, the stability of PEDOT:PSS properties in wet or physiological environments is a concern because PSS swells with moisture, although relatively less than pregel electrodes. Additionally, the influence of additives is also a concern because secondary doping with additives such as surfactants and polar solvents is required to plasticize insulating PSS and improves the crystallinity of PEDOT for high conductivity. , …”

Section: Introductionmentioning

confidence: 99%

Evaluation of Stability and Cytotoxicity of Self-Doped PEDOT Nanosheets in a Quasi-Biological Environment for Bioelectrodes

Taniguchi,

Nagata,

Yano

et al. 2024

ACS Appl. Polym. Mater.

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PEDOT:PSS is the most extensively used organic conductive material for flexible sensors; however, its long-term use in wet biological environments is difficult due to the swelling of PSS and the leaching of additives introduced by secondary interactions. Self-doped PEDOT (S-PEDOT) containing sulfonic acid groups covalently bonded to the PEDOT backbone has been applied to evaluate the stability of its performance as a conductive nanosheet and cytotoxicity. The S-PEDOT nanosheets and the control PEDOT:PSS nanosheets were prepared with a spin-coating method and immersed in a quasi-biological environment (PBS or culture medium, 37 °C, 5% CO 2 ). Approximately 60 days of immersion increased the resistance of PEDOT:PSS 6-fold, while the resistance of S-PEDOT remained 3-fold. The difference would be caused by the crystal structure of the PEDOT chains being disrupted by the replacement of protons of the sulfonic acid groups in PSS with Na + ions, swelling of PEDOT:PSS, and elution of the surfactant Zonyl, while the crystal structure of the main chain of S-PEDOT was maintained even after immersion, although the replacement by Na + ions occurred. In addition, cytotoxicity was observed in the extract of the PEDOT:PSS nanosheet due to the elution of Zonyl, which is highly cytotoxic, while S-PEDOT showed low cytotoxicity because the additive containing Si was covalently bonded to the main chain. Thus, it was suggested that S-PEDOT nanosheets can function as minimally invasive bioelectrodes that can be used in the physiological environment.

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PEDOT:PSS-based screen-printable inks for H2O2 electrochemical detection

Cited by 8 publications

References 45 publications

High-Performance Sustainable Electrochromic Devices Based on Carrageenan Solid Polymer Electrolytes with Ionic Liquid

High-Performance Sustainable Electrochromic Devices Based on Carrageenan Solid Polymer Electrolytes with Ionic Liquid

Soft Schottky diodes for skin-interfaced electronics enabled by entirely soft components

Evaluation of Stability and Cytotoxicity of Self-Doped PEDOT Nanosheets in a Quasi-Biological Environment for Bioelectrodes

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