Journal ArticleDOI
Flexible, Ultrathin, and High-Efficiency Electromagnetic Shielding Properties of Poly(Vinylidene Fluoride)/Carbon Composite Films.
TLDR
This study provides the groundwork for an effective way to design flexible, ultrathin conductive polymer composite film for application in miniaturized electronic devices.Abstract:
In this study, we fabricated conductive poly(vinylidene fluoride) (PVDF)/carbon composites simply by dispersing multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets into a PVDF solution The electrical conductivity and the electromagnetic interference (EMI) shielding of the PVDF/carbon composites were increased by increasing the conductive carbon filler amounts Moreover, we also found that the EMI shielding properties of the PVDF/CNT/graphene composites were higher than those of PVDF/CNT and PVDF/graphene composites The mean EMI shielding values of PVDF/5 wt %-CNT, PVDF/10 wt %-graphene, and PVDF/CNT/graphene composite films with a thickness of 01 mm were 2241, 1870, and 2758 dB, respectively An analysis of the shielding mechanism showed that the main contribution to the EMI shielding came from the absorption mechanism, and that the EMI shielding could be tuned by controlling the films’ thickness The total shielding of the PVDF/CNT/graphene films increased from 2190 to 3646 dB as theread more
Citations
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Journal ArticleDOI
Layer-by-Layer Assembly of Cross-Functional Semi-transparent MXene-Carbon Nanotubes Composite Films for Next-Generation Electromagnetic Interference Shielding
Guoming Weng,Guoming Weng,Jinyang Li,Mohamed Alhabeb,Christopher Karpovich,Hang Wang,Hang Wang,Hang Wang,Jason Lipton,Jason Lipton,Kathleen Maleski,Jaemin Kong,Jaemin Kong,Evyatar Shaulsky,Menachem Elimelech,Yury Gogotsi,André D. Taylor,André D. Taylor +17 more
TL;DR: In this paper, spin spray layer-by-layer (SSLbL) is used to rapidly assemble Ti3C2Tx MXene-carbon nanotube (CNT) composite films and their potential for EMI shielding is demonstrated.
Journal ArticleDOI
Assembling Nano–Microarchitecture for Electromagnetic Absorbers and Smart Devices
TL;DR: The brightest and most cutting‐edge smart EM devices constructed by 3D nano–micro architectures are reported as highlights, and the device principles are deeply dissected.
Journal ArticleDOI
Review on the electromagnetic interference shielding properties of carbon based materials and their novel composites: Recent progress, challenges and prospects
Nannan Wu,Qian Hu,Qian Hu,Renbo Wei,Xianmin Mai,Nithesh Naik,Duo Pan,Duo Pan,Zhanhu Guo,Zhengjun Shi +9 more
TL;DR: In this paper, a review of recent achievements for carbon materials with different microstructures as electromagnetic interference shielding materials (ESMs) and microwave absorption materials (MAMs) during the past five years is presented.
Journal ArticleDOI
Highly Efficient and Reliable Transparent Electromagnetic Interference Shielding Film.
TL;DR: The creation of an efficient transparent EMI shielding film that is composed of calcium alginate (CA), silver nanowires (AgNWs), and polyurethane (PU), via a facile and low-cost Mayer-rod coating method is demonstrated, which meets the requirements for commercial shielding applications.
Journal ArticleDOI
Synergistic effect of carbon nanotube and graphene nanoplates on the mechanical, electrical and electromagnetic interference shielding properties of polymer composites and polymer composite foams
Hongming Zhang,Guangcheng Zhang,Meng Tang,Lisheng Zhou,Jiantong Li,Xun Fan,Xuetao Shi,Jianbin Qin +7 more
TL;DR: In this paper, two different dimensional nanofillers of MWCNTs and GNPs were used as bifillers to explore their synergistic effect on the final mechanical and electrical properties.
References
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Journal ArticleDOI
The chemistry of graphene oxide
TL;DR: This review will be of value to synthetic chemists interested in this emerging field of materials science, as well as those investigating applications of graphene who would find a more thorough treatment of the chemistry of graphene oxide useful in understanding the scope and limitations of current approaches which utilize this material.
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Raman spectroscopy as a versatile tool for studying the properties of graphene
Andrea C. Ferrari,Denis M. Basko +1 more
TL;DR: The state of the art, future directions and open questions in Raman spectroscopy of graphene are reviewed, and essential physical processes whose importance has only recently been recognized are described.
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Electromagnetic interference shielding with 2D transition metal carbides (MXenes)
Faisal Shahzad,Mohamed Alhabeb,Christine B. Hatter,Babak Anasori,Soon Man Hong,Chong Min Koo,Yury Gogotsi +6 more
TL;DR: The mechanical flexibility and easy coating capability offered by MXenes and their composites enable them to shield surfaces of any shape while providing high EMI shielding efficiency.
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Microwave Absorption Enhancement and Complex Permittivity and Permeability of Fe Encapsulated within Carbon Nanotubes
TL;DR: In this paper, the absorption properties of CNT/crystalline Fe nanocomposites have been investigated and it was shown that the absorption property is due to the confinement of crystalline Fe in carbon nanoshells, deriving mainly from magnetic rather than electric effects.
Journal ArticleDOI
Electromagnetic interference shielding effectiveness of carbon materials
TL;DR: Carbon materials for electromagnetic interference (EMI) shielding are reviewed in this article, including composite materials, colloidal graphite and flexible graphite, and they include carbon filaments of submicron diameter.