Multilayered graphene-carbon nanotube-iron oxide three-dimensional heterostructure for flexible electromagnetic interference shielding film

被引：203

作者：

Lee, Si-Hwa ^{[1
]}

Kang, Donghoon ^{[2
]}

Oh, Il-Kwon ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Sch Mech & Aerosp Engn, Dept Mech Engn, Creat Res Initiat Ctr Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea

[2] Korea Railrd Res Inst, New Transportat Syst Res Ctr, Adv Mat Res Team, 176 Cheoldo Bangmulgwan Ro, Uiwang 437757, South Korea

来源：

CARBON | 2017年 / 111卷

基金：

新加坡国家研究基金会;

关键词：

ELECTRICAL-CONDUCTIVITY; FOAM COMPOSITES; LIGHTWEIGHT; GRAPHITE; EFFICIENCY; FREQUENCY; HYBRID; DB;

D O I：

10.1016/j.carbon.2016.10.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Here, we report a rapid and straightforward microwave method to synthesize a multilayered and interconnected three-dimensional graphene-carbon nanotube-iron oxide (3D G-CNT-Fe2O3) heteronanostructure for a flexible and wideband high-performance electromagnetic interference (EMI) shielding film. The single integrated 3D G-CNT-Fe2O3 heteronanostructure that consists of carbon nanotubes, graphene sheets and iron oxide nanoparticles results in strong synergy from multilevel EMI shielding due to strong coupling among conduction loss, hysteresis loss and multiple scattering. As a result, multilevel reflection, absorption, and scattering processes are realized on the surfaces and interlayers of the 3D heteronanostructure, and much higher SE (Shielding effectiveness) values (130 -134 dB) are observed in a bandwidth ranging from 8.0 to 12.0 GHz. As a whole, the thin and flexible composite film made with 3D G-CNT-Fe2O3 nanostructures and Poly(3,4-ethylenedioxythiophene) poly(4-styrenesulfonate) demonstrates excellent EMI shielding effectiveness over 130 dB and shows flexible and durable performance under repeated bending tests, over 1000 times, without a remarkable degradation of the performance. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：248 / 257

页数：10

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