电磁屏蔽
导电体
材料科学
电磁干扰
氧化铟锡
电磁干扰
透射率
涂层
光电子学
复合材料
图层(电子)
薄板电阻
电气工程
工程类
作者
Yisong Zhang,Tao Wang,Ze-Long Bao,Peng-Fei Qian,Xuan-Chen Liu,Wen-Hao Geng,Yun Shen,Shiwei Wang,Qingxia Zhu,Hong-Zhang Geng
标识
DOI:10.1016/j.jcis.2024.03.120
摘要
With the popularization of 5G technology and the development of science and technology, flexible and transparent conductive films (TCF) are increasingly used in the preparation of optoelectronic devices such as electromagnetic shielding devices, transparent flexible heaters, and solar cells. Silver nanowires (AgNW) are considered the best material for replacing indium tin oxide to prepare TCFs due to their excellent comprehensive properties. However, the loose overlap between AgNWs is a significant reason for the high resistance. This article investigates a sandwich structured conductive network composed of AgNW and Ti3C2Tx MXene for high-performance EMI shielding and transparent electrical heaters. Polyethylene pyrrolidone (PVP) solution was used to hydrophilic modify PET substrate, and then MXene, AgNW, and MXene were assembled layer by layer using spin coating method to form a TCF with a sandwich structure. One-dimensional AgNW is used to provide electron transfer channels and improve light penetration, while two-dimensional MXene nanosheets are used for welding AgNWs and adding additional conductive channels. The flexible TCF has excellent transmittance (85.1 % at 550 nm) and EMI shielding efficiency (27.1 dB). At the voltage of 5 V, the TCF used as a heater can reach 85.6 °C. This work offers an innovative approach to creating TCFs for the future generation.
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