Dielectric Polymeric Compositions for Improved Electrical Properties of Flexible Electronics

Tahalyani, Jitendra; Khanale, Mrunalini; Kandasubramanian, Balasubramanian

doi:10.1016/b978-0-12-813351-4.00026-2

Cited by 12 publications

(9 citation statements)

References 81 publications

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“…By doping the CP, the band gap reduces, thus allowing the electrons to transition from one state to other with much less activation energy, making them behave similar to metals. As a result, they have been employed in numerous applications, such as flexible electronics, biosensors, hydrophobic functions, stimulated molecular electronics, other electronic applications. , …”

Section: Conducting Polymersmentioning

confidence: 99%

“…18 By doping the CP, the band gap reduces, thus allowing the electrons to transition from one state to other with much less activation energy, making them behave similar to metals. As a result, they have been employed in numerous applications, such as flexible electronics, 19 biosensors, 20 hydrophobic functions, 21 stimulated molecular electronics, 22 other electronic applications. 23,24 Various methods, either chemical or electrochemical proceeding via different routes, are employed in the manufacturing of CP, where the resulting polymers could be tailored for modification, including covalent attachments to the backbone.…”

Section: Introductionmentioning

confidence: 99%

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Advancements in Biological Neural Interfaces Using Conducting Polymers: A Review

Parashar

Prajapati

McIntyre³

et al. 2020

Ind. Eng. Chem. Res.

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Neural interfacing machines are interfacial devices that restores the purpose of the nervous system lost because of any disease or injury. In the current scenario, conventional metal-based electrodes are employed for neural interfacing; however, the challenge faced with these electrodes is signal degeneration, because of filling of the liquid gap (i.e., in extra systemic implants) between target tissue and electrode. Thus, this problem aroused a novel idea to use conducting polymers (CPs), because it provides excellent electrical conductivity for signal transduction, along with biocompatibility with human body. Implanted metal electrodes generate an immunological response in the human body and attempts to eradicate them by treating them as a foreign material. CPs are generally biocompatible with the bodies’ immune system and does not induce any significant long-term negative effect in vivo and are much preferred and reliable over the conventional techniques, because of its high surface area, which promotes a good conductance with target tissues by reducing impedance and, hence, enhances the recording and simulation applications of various neural processes. Thus, this Review intends to study several neural interfacing applications by using polypyrrole and PEDOT as primary CPs, with brief explanation of their preparation and conductance mechanisms, and then focuses on neural implanting, interfacing behaviors, and superiority over other materials. Novel designing and applications of cochlear implants, bionic eyes, and brain-machine interfering are hereby reviewed.

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Section: Conducting Polymersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advancements in Biological Neural Interfaces Using Conducting Polymers: A Review

Parashar

Prajapati

McIntyre³

et al. 2020

Ind. Eng. Chem. Res.

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“…Polymer‐based dielectrics are well‐suited materials for such applications due to their flexibility, durability and ease of synthesis. Polymers can be molded into various configurations, making them a potential candidate for various applications 1–5 . Additionally, polymers have a good dielectric constant (

ε_{r}

) too, in the range of 2–12 6 .…”

Section: Introductionmentioning

confidence: 99%

“…Polymers can be molded into various configurations, making them a potential candidate for various applications. [1][2][3][4][5] Additionally, polymers have a good dielectric constant (ε r ) too, in the range of 2-12. 6 The dielectric constant of inorganic materials is higher than the organic materials, but their non-flexible nature limits their applications.…”

Section: Introductionmentioning

confidence: 99%

Enhanced dielectric properties of freestanding, flexible, hydrophobic cellulose/poly(vinylidene fluoride) composite films

Jangra

Thakur

Dam

et al. 2022

Journal of Polymer Science

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Freestanding, composite films of poly(vinylidene fluoride) (PVDF) and cellulose were synthesized and characterized for morphological, microstructural, vibrational and dielectric properties. The thickness of the freestanding films was found to be $38 μm. Contact angle measurements showed the hydrophobic nature of the composite films. Fourier transformed infrared (FTIR) spectroscopy confirmed the reduction in the α phase content of the PVDF films with the addition of fillers. The measured dielectric constant of the composite films was found to be more than two times than that of the pristine films. An increase in the dielectric constant of the composite films was attributed to the Maxwell-Wagner-Sillars (MWS) polarization. A triboelectric nanogenerator (TENG) operating in a vertical contact-separation configuration was fabricated using these composite films. A maximum output power density of $6 μW/cm 2 was achieved from the TENG fabricated using the composite films.

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“…The expeditious growth in the areas of smart textiles, wearable sensors, flexible displays, and medical equipment evoked increased attention in the field of flexible sensing devices. − In conventional sensing devices, petrochemical industry-based materials, metals, conducting polymers, semiconductors, and carbon-based materials are generally used as substrates for immobilizing the receptor molecules. , It is unobjectionable that these materials have played a significant role in developing flexible devices to the present stage. However, these materials are entitled to quite a few disadvantages, including nonrenewability, high production costs, and potential environmental hazards.…”

Section: Introductionmentioning

confidence: 99%

Silk Fibroin As an Immobilization Matrix for Sensing Applications

Prakash

Mane

George

et al. 2021

ACS Biomater. Sci. Eng.

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The development of flexible, biocompatible, and environmentfriendly sensors has attracted a significant amount of scientific interest for the past few decades. Among all the natural materials, silk fibroin (SF), due to its tunable biodegradability, biocompatibility, ease of processing, presence of functional groups, and controllable dimensions, has opened up opportunities for immobilizing multitudinous biomolecules and conformability to the skin, among other attractive opportunities. The silk fibroins also offer good physical properties, such as superior toughness and tensile strength. The sensors made of SF as an immobilization matrix have demonstrated excellent analytical performance, sensing even at low concentrations. The significant advantage of silk fibroins is the presence of functional groups along with a controllable conformation transition that enables immobilization of receptor molecules using silk fibroins as an immobilization matrix enables us to entrap the receptor molecules without using any chemical reagents. This review encompasses a detailed discussion on sensors, the advantages of using silk fibroins as an immobilization matrix for various receptors, their applications, and the future research scope in this state-of-the-art technology based upon the explorable applications for silk fibroin-based sensors.

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Dielectric Polymeric Compositions for Improved Electrical Properties of Flexible Electronics

Cited by 12 publications

References 81 publications

Advancements in Biological Neural Interfaces Using Conducting Polymers: A Review

Advancements in Biological Neural Interfaces Using Conducting Polymers: A Review

Enhanced dielectric properties of freestanding, flexible, hydrophobic cellulose/poly(vinylidene fluoride) composite films

Silk Fibroin As an Immobilization Matrix for Sensing Applications

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