Conductive ink based on PEDOT nanoparticles dispersed in water without organic solvents, passivant agents or metallic residues

Neves, Matheus Felipe Fagundes das; Damasceno, João Paulo Vita; D.L., Osvaldo; Zarbin, Aldo J. G.; Roman, Lucimara S.

doi:10.1016/j.synthmet.2020.116657

Cited by 10 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The printing technique to be used must be suitable for the type of ink chosen. Various techniques are employed in the manufacture of printed electrodes, and the most common is screen-printing [15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Catechol Using a Disposable Printed Electrode with Conductive Ink Based on Graphite and Carbon Black

de Oliveira,

de Oliveira Cândido,

Pereira

et al. 2024

Analytica

View full text Add to dashboard Cite

Catechol (CT) is a phenolic compound widely used in various industrial sectors, but it is toxic; thus, there is a need for methods that aim to identify and quantify the existence of residues of this material in the environment. In this study a disposable printed electrochemical sensor was developed as an effective alternative for determining CT in water samples. The electrode, called SPEC, was manufactured using the screen-printing method using polyethylene terephthalate (PET) as a support, in which a conductive ink based on carbonaceous materials was used to print the working and auxiliary electrodes and a silver/silver chloride of ink on the reference electrode. The optimal ratio for the conductive ink was 6.25% carbon black, 35.42% graphite, and 58.33% nail polish. The ink obtained was characterized by scanning electron microscopy (SEM). The assessment of the effect of pH on the redox process showed Nernstian behavior (0.057 V pH−1), indicating that the process involves the same number of protons and electrons. Under optimized conditions, with 0.2 mol L−1 acetate buffer at pH 5.0, and by square wave voltammetry, the sensor presented sensitivity values of 0.31 μA L μmol−1, a detection limit of 5.96 μmol L−1, and a quantification limit of 19.87 μmol L−1. The sensor was applied to determine CT in tap water samples, and the results showed recoveries between 97.95 and 100.17%.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Catechol Using a Disposable Printed Electrode with Conductive Ink Based on Graphite and Carbon Black

de Oliveira,

de Oliveira Cândido,

Pereira

et al. 2024

Analytica

View full text Add to dashboard Cite

show abstract

“…These include π-conjugated semiconducting polymers that can be molecularly engineered with polar side chains (carbohydrates or amino acids for instance) or dynamic backbone moieties (such as imine bonds) [17][18][19]. For conducting materials, various new highperformance conducting polymers and composites have shown both good solubility in green solvents (water and alcohol-based solvents) and high conductivity as well biodegradability to advance eco-friendly electronics [20,21]. For example, Santhiago et al have prepared high-performance printable conductive inks with low sheet resistance (∼250 Ω sq −1 ) through the combination of carbon black and cellulose acetate [22].…”

Section: Introductionmentioning

confidence: 99%

Shellac as dielectric materials in organic field-effect transistors: from silicon to paper substrates

Skaf,

Gomes,

Majidzadeh

et al. 2023

Flex. Print. Electron.

View full text Add to dashboard Cite

Recent advances in the design and preparation of electroactive materials, particularly semiconducting and conductive polymers, have resulted in the creation of novel organic electronics with advanced functionality and performance competitive with that of devices made of silicon. With an increasing number of organic and printed electronics being engineered and produced at a larger scale, the environmental cost of the final organic electronic devices (life cycle, environmental impact, etc.) needs to be considered. While e-waste is already a growing global problem, improving the sustainability of emerging electronics through a careful materials selection is highly desirable. In this work, we explore the use of shellac as a sustainable greener dielectric material in organic field-effect transistors (OFET). A careful examination of shellac in combination with diketopyrrolopyrrole-based semiconducting polymers was performed on rigid substrates through AFM and the fabrication of thin film transistors. All devices made from this green dielectric showed good performance and device characteristics. Building from this investigation, shellac was further integrated with paper substrates to fabricate paper-based thin film transistors. Thin film samples based on shellac on both silicon wafer and paper substrates were characterized by atomic force microscopy to investigate solid-state morphology of shellac and selected semiconducting materials. Through careful optimization of the device architecture and processing time, device characteristics and performances on paper substrates (average charge mobilities and on/off current ratios) were comparable to those of devices prepared on silicon wafers, confirming that shellac, in combination with organic semiconducting polymers, can be an advantageous dielectric material to be used for the fabrication of greener and sustainable thin film electronics from renewable feedstocks and components.

show abstract

Ecological, flexible and transparent cellulose-based substrates without post-production treatment for organic electronic devices

Carneiro

Neves

Muniz

et al. 2023

J Mater Sci: Mater Electron

Self Cite

View full text Add to dashboard Cite

In the past few decades, technological advances have aroused the interest of industries and consumers for exible electronic devices. However, the substrates currently used, such as glass and polyethylene terephthalate (PET), present problems regarding their performance and destination, since the rst is di cult to handle and the second comes from non-renewable sources. Common properties required in substrates to provide their use in organic electronics are exibility, stability and su cient transparency. Therefore, as a sustainable and e cient alternative, the present study aimed to develop a totally cellulose-based substrate, a natural abundant polymer that presents thermal stability, mechanical strength, recyclability and is biodegradable. It was produced different substrates using micro brils from Eucalyptus sp. A pure micro ber substrate weighing 25 g m -² was obtained by the vacuum ltration method and paper-forming machine. The other four substrates were obtained by the casting method containing cellulose acetate matrix and freeze-dried micro brils reinforcement at different concentrations. In addition, a substrate containing 1.0 % of the suspended micro brils as reinforcement in the cellulose acetate matrix was produced. A conductive thin lm of Poly(3,4-ethylenedioxythiophene)poly(styrenesulfonate) (PEDOT:PSS) was deposited by air-brush technique as an electrode to evaluate the electrical performance of the substrates. The obtained lms were characterized by their optical, thermal and morphological properties, showing a great potential to be used as substrate in organic electronic devices.

show abstract

Conductive ink based on PEDOT nanoparticles dispersed in water without organic solvents, passivant agents or metallic residues

Cited by 10 publications

References 44 publications

Electrochemical Determination of Catechol Using a Disposable Printed Electrode with Conductive Ink Based on Graphite and Carbon Black

Electrochemical Determination of Catechol Using a Disposable Printed Electrode with Conductive Ink Based on Graphite and Carbon Black

Shellac as dielectric materials in organic field-effect transistors: from silicon to paper substrates

Ecological, flexible and transparent cellulose-based substrates without post-production treatment for organic electronic devices

Contact Info

Product

Resources

About