Facile Preparation of Lightweight and Flexible PVA/PEDOT:PSS/MWCNT Ternary Composite for High-Performance EMI Shielding in the X-Band Through Absorption Mechanism

Electromagnetic safeguards are key factors for electronic devices. Lightweight and highly flexible polymer composite films with high electrical conductivity are considered to be efficient electromagnetic interference (EMI) shielding materials. Polymer composites offer alternative to metal-based comp...

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Veröffentlicht in:Journal of electronic materials 2020-03, Vol.49 (3), p.1689-1701
Hauptverfasser: Jasna, M., Pushkaran, Neeraj K., Manoj, M., Aanandan, C. K., Jayaraj, M. K.
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container_end_page 1701
container_issue 3
container_start_page 1689
container_title Journal of electronic materials
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creator Jasna, M.
Pushkaran, Neeraj K.
Manoj, M.
Aanandan, C. K.
Jayaraj, M. K.
description Electromagnetic safeguards are key factors for electronic devices. Lightweight and highly flexible polymer composite films with high electrical conductivity are considered to be efficient electromagnetic interference (EMI) shielding materials. Polymer composites offer alternative to metal-based composites which have poor flexibility, corrodibility, and are difficult to process. Here, highly flexible polyvinyl alcohol / poly (3, 4-ethylenedioxythiophene):polystyrene sulfonate/multiwalled carbon nanotube (PVA/PEDOT:PSS/MWCNT) free-standing composite films were fabricated by a solution mixing process followed by a simple solvent casting technique. PVA/PEDOT:PSS/MWCNT composite films of thickness around 20 microns showed high EMI shielding effectiveness (SE) in the X-band over the frequency range of 8–12 GHz. Incorporation of MWCNT into the polymer matrix considerably increased the mechanical strength of the PVA/PEDOT:PSS/MWCNT composite free-standing film. This investigation revealed that PVA/PEDOT:PSS/MWCNT composite film with 0.5 wt.% of MWCNT showed excellent absorption-dominated EMI SE of 60 dB over the frequency range of 8–12 GHz with extensive tensile strength. Our study opens a facile way to design flexible, lightweight and free-standing films as EMI shielding for next-generation flexible electronic devices.
doi_str_mv 10.1007/s11664-019-07676-8
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subjects Absorption
Characterization and Evaluation of Materials
Chemical industry
Chemistry and Materials Science
Electrical resistivity
Electromagnetic shielding
Electronic devices
Electronics and Microelectronics
Frequency ranges
Instrumentation
Lightweight
Materials Science
Multi wall carbon nanotubes
Optical and Electronic Materials
Polymer films
Polymer matrix composites
Polymers
Polystyrene resins
Polyvinyl alcohol
Product design
Progress and Challenges in Developing Electromagnetic Interference Materials
Solid State Physics
Superhigh frequencies
Tensile strength
Thickness
title Facile Preparation of Lightweight and Flexible PVA/PEDOT:PSS/MWCNT Ternary Composite for High-Performance EMI Shielding in the X-Band Through Absorption Mechanism
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