Evaluation of electromagnetic interference shielding using Poly(3,4-ethylenedioxythiophene) Polystyrene sulfonate blend

Khanum, Khadija Kanwal; Bora, Pritom J.; Vinoy, K. J.; Ramamurthy, Praveen C.

doi:10.1109/icemelec.2016.8074607

Cited by 5 publications

(7 citation statements)

References 9 publications

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“…Hence, we calculated the reflection efficient R , absorption coefficient A , and transmission coefficient T using an alternative method proposed in Yang et al and Khanum et al’s papers, where the same coaxial method was employed. 43,44 The related equations are described as follows…”

Section: Results and Discussionmentioning

confidence: 99%

“…In this work, the S -parameters of the samples between 8.2 and 12.4 GHz were measured through the coaxial method by a PNA-X network vector analyzer. Hence, we calculated the reflection efficient R , absorption coefficient A , and transmission coefficient T using an alternative method proposed in Yang et al and Khanum et al’s papers, where the same coaxial method was employed. , The related equations are described as follows …”

Section: Results and Discussionmentioning

confidence: 99%

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Ultrathin Active Layer for Transparent Electromagnetic Shielding Window

2018

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Recently, electromagnetic (EM) shielding (EMS) window, especially the ultrathin, transparent EMS active layer, has been the primary objective of extensive studies because of its widely potential applications in stealth technology, high radiation pollution, and others. However, several defects, including opacity and large thickness, have severely restricted the application in optical EMS devices. Herein, we developed an ultrathin and highly transparent EMS active layer on a rigid glass and a flexible polyethylene terephthalate substrate by chemical doping CVD (chemical vapor deposition) graphene with nitric acid (HNO 3 ) as the P-type dopant, which has a 91% transmittance and 1/1000 thickness compared to the conventional EMS active layer. The HNO 3 -treated graphene shows excellent EMS efficiency by a factor of 4.5, significantly compensating for the adverse effects of the grain boundaries between CVD graphene crystals. Additionally, 55% HNO 3 is the most suitable for achieving high EMS effectiveness, which can be significantly improved by treating for only 5 min. This unique chemical-doping CVD graphene holds potential for being exploited as a transparent active layer in numerous EMS applications.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Ultrathin Active Layer for Transparent Electromagnetic Shielding Window

2018

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“…These hydroxyl groups interact with sulphonic acid groups in PSS and enhance the electrical conductivity. [147] Khanum et al [80] reported a ternary blend of PEDOT: PSS /PEO/PVA and investigated the EMI shielding properties in Xband and K u -band. The ternary blend was prepared from PE-DOT: PSS -PEO-PVA in the weight ratio85:7.5:7.5 by drop casting method.…”

Section: Pedot: Pss Based Composites Without Fillers For Emi Shieldingmentioning

confidence: 99%

“…The EMI Shielding performance was further evaluated after an interval of 30 days and the value remained same indicating that PEDOT: PSS -PEO-PVA blend had high stability. [80] Ghaderi et al [148] prepared EMI shields in X-band through 3D printing of solvent-treated PEDOT:PSS inks via molecular engineering by co-solvent doping or solvent post-treatment with Figure 8. Schematic illustration of the procedure for preparing PMIA/Ag NWs/PEDOT: PSS nonwoven fabric.…”

Section: Pedot: Pss Based Composites Without Fillers For Emi Shieldingmentioning

confidence: 99%

“…PEDOT: PSS was coated over polymer matrixes having hydroxyl groups such as cotton fiber, cellulose fiber, cotton pad, glycerol derived polyacrylonitrile (PAN) fiber, polyvinyl alcohol (PVA), and polyethyelene oxide (PEO) to improve the mechanical properties of PE-DOT: PSS. [80][81][82][83] Dispersion of carbonic fillers such as MWCNT, graphene and carbon nanofibers into PEDOT: PSS forms extended conductive path to tailor the EMI shielding properties. Metal nanoparticles and nanowires, such as iron, Cu, Ag NP, Ag NW added with PEDOT: PSS form additional electrically conductive network and improve electrical conductivity of composite materials which can directly influence the EMI shielding properties.…”

Section: Introductionmentioning

confidence: 99%

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Recent Progress in Poly (3,4‐Ethylene Dioxythiophene): Polystyrene Sulfonate Based Composite Materials for Electromagnetic Interference Shielding

Sharma,

Joseph,

James

2023

Adv Materials Technologies

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Recent technological developments have made the emission of electromagnetic (EM) radiation a significant source of electromagnetic interference (EMI). These EMIs consist of stray EM radiations that damage and malfunction electronics and telecommunication systems. Scientists have made countless efforts to solve these problems. The demand for EMI shielding materials is fast growing due to the increasing complexity of the EM environment and EMI. Poly(3,4‐ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS) is an intrinsically conductive polymer that has attracted attention due to its high electrical conductivity, processability, and environmental stability. The use of PEDOT:PSS as a shielding material for EMI is a promising alternative to traditional metal‐based materials. This review provides an overview of different strategies explored for the preparation of PEDOT: PSS‐based composites for EMI shielding and the use of carbonic fillers, metal and metal nanoparticles, magnetic particles, and MXenes in these composites. The advantages and disadvantages of different approaches are discussed, and future perspectives for the development of PEDOT:PSS composites for EMI shielding are presented. The paper concludes that PEDOT‐PSS‐based composites offer significant potential for the development of lightweight, thin, flexible, and cost‐effective green EMI shielding materials, and continued research in this field can lead to their widespread commercialization and adoption.

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Advances in Hybrid Conducting Polymer Technology for EMI Shielding Materials

Shukla

2021

Advances in Hybrid Conducting Polymer Technology

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Evaluation of electromagnetic interference shielding using Poly(3,4-ethylenedioxythiophene) Polystyrene sulfonate blend

Cited by 5 publications

References 9 publications

Ultrathin Active Layer for Transparent Electromagnetic Shielding Window

Ultrathin Active Layer for Transparent Electromagnetic Shielding Window

Recent Progress in Poly (3,4‐Ethylene Dioxythiophene): Polystyrene Sulfonate Based Composite Materials for Electromagnetic Interference Shielding

Advances in Hybrid Conducting Polymer Technology for EMI Shielding Materials

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