MXene-PEDOT:PSS Nanocomposite-Based Electromagnetic Interference Shields with Ultrahigh Absolute Shielding Effectiveness

材料科学 电磁屏蔽 佩多:嘘 纳米复合材料 复合材料 导电聚合物 聚合物 电磁干扰 纳米片 电磁干扰 涂层 电介质 光电子学 纳米技术 电子工程 工程类
作者
Sanjoy Sur Roy,Koushik Ghosh,M. Meyyappan,P. K. Giri
出处
期刊:ACS applied nano materials [American Chemical Society]
卷期号:6 (24): 23357-23369 被引量:11
标识
DOI:10.1021/acsanm.3c04682
摘要

Electromagnetic interference (EMI) poses a significant challenge in modern electronic devices, leading to malfunctions and performance degradation. Effective mitigation of EMI relies on the selection of suitable materials for EMI shielding. Two-dimensional transition metal carbide and nitride (MXene) materials have received wide attention for constructing EMI shields because of their exceptional properties. Herein, an ultrathin and lightweight Ti3C2Tx MXene nanosheet and poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT:PSS) nanocomposite film with varying polymer contents and a unique "brick and mortar"-like layered structure was fabricated for the first time via the blade-coating technique. The Ti3C2Tx MXene and PEDOT:PSS nanocomposite film with 10 wt % polymer content exhibits superior EMI shielding effectiveness (SE) compared to the pure Ti3C2Tx film and nanocomposites with higher polymer content. The nanocomposite film of only 30.9 μm thickness displays an outstanding average SE value of 66 dB over the X-band, corresponding to 99.99997% shielding efficiency and an absolute shielding effectiveness of 44863 dB·cm2·g–1. Various factors affecting the shielding performance such as thickness, conductivity, and polymer weight percentage were studied, and the results agree well with available theoretical predictions. Furthermore, the absorptivity (A) increased substantially due to the incorporation of conductive polymers. For instance, the value of A reached from 0.16 for the Ti3C2Tx film to 0.38 for the Ti3C2Tx/PEDOT:PSS nanocomposite with a polymer content of 40 wt %. The increase in A ensures environmentally friendly green shielding. The mechanism of shielding was further studied using dielectric measurements of the nanocomposite films, which reveal high absorption loss due to interfacial and dipolar polarization in the case of a high polymer content film. This work paves the way for developing MXene and PEDOT:PSS nanocomposite-based lightweight, flexible, and ultrathin EMI shielding for ensuing commercial applications.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
李健的小迷弟应助郭郭采纳,获得10
1秒前
YingLi完成签到,获得积分10
4秒前
英姑应助顺心牛排采纳,获得10
5秒前
5秒前
wang完成签到,获得积分20
6秒前
yang发布了新的文献求助10
7秒前
8秒前
zjw发布了新的文献求助20
9秒前
路在脚下完成签到 ,获得积分10
9秒前
张秋雨发布了新的文献求助10
10秒前
66完成签到,获得积分10
11秒前
14秒前
Phalloidin发布了新的文献求助10
14秒前
丁丁丁完成签到,获得积分10
15秒前
土拨鼠发布了新的文献求助10
15秒前
酷波er应助阿邱采纳,获得10
16秒前
举不了一点栗子完成签到,获得积分10
17秒前
wangxin发布了新的文献求助10
17秒前
科研通AI5应助小盼虫采纳,获得10
17秒前
18秒前
21秒前
要减肥冰菱完成签到 ,获得积分10
21秒前
小二郎应助yang采纳,获得10
21秒前
妙高台发布了新的文献求助40
22秒前
23秒前
彩色诗云发布了新的文献求助10
24秒前
zhou完成签到,获得积分10
24秒前
HEAUBOOK应助Nano采纳,获得10
24秒前
25秒前
26秒前
果粒橙980发布了新的文献求助10
26秒前
wangxin完成签到,获得积分20
26秒前
爆米花应助小盼虫采纳,获得10
27秒前
28秒前
28秒前
jenny发布了新的文献求助10
31秒前
31秒前
bkagyin应助果粒橙980采纳,获得10
34秒前
cdercder应助马李啸采纳,获得10
35秒前
TuZhuling完成签到,获得积分10
36秒前
高分求助中
【此为提示信息,请勿应助】请按要求发布求助,避免被关 20000
Continuum Thermodynamics and Material Modelling 2000
Encyclopedia of Geology (2nd Edition) 2000
105th Edition CRC Handbook of Chemistry and Physics 1600
Maneuvering of a Damaged Navy Combatant 650
Периодизация спортивной тренировки. Общая теория и её практическое применение 310
Mixing the elements of mass customisation 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3778908
求助须知:如何正确求助?哪些是违规求助? 3324476
关于积分的说明 10218591
捐赠科研通 3039495
什么是DOI,文献DOI怎么找? 1668258
邀请新用户注册赠送积分活动 798634
科研通“疑难数据库(出版商)”最低求助积分说明 758440