Electrical, Mechanical, and Electromagnetic Shielding Properties of Silver Nanowire‐Based Transparent Conductive Films

Abstract

In this work, an acrylate-based organic coating is developed to cover the electrically conductive silver nanowires (AgNWs) to improve the adhesion properties of AgNWs on PMMA substrates. A simple spray coating technique is performed to obtain large scale and highly uniform conductive silver nanowire films on PMMA substrates. The AgNWs covered by organic coatings are evaluated ex situ in terms of adhesion, transparency, electrical, mechanical, and electromagnetic shielding properties. Results indicated the adhesion of AgNWs covered by coatings is greatly superior to the uncovered AgNWs, which can be attributed to the strong hydrogen interfacial bond between the coating and PMMA substrate. Furthermore, the overall properties, including good transparency (!80% in the visible range), flexibility (bending more than 1000 cycles), electromagnetic shielding (larger than 30 GHz from 1 to 18 GHz), meet the requirements of transparent parts in the aeronautical industry, and other commercial fields.

Transparent, conductive and flexible MXene grid/silver nanowire hierarchical films for high-performance electromagnetic interference shielding

“…Similarly, the M 326 A 82 lm has a higher EMI shielding efficiency of 24.6 dB than the A 82 lm (18.9 dB), and the former can maintain an optical transmittance of 81%. Obviously, the multiscale hierarchicalstructure design is efficient in achieving both high optical transmittance and high electrical conductivity as compared to AgNWs and other materials (Table S1 †), [54][55][56] because the MXene grid skeleton provides efficient pathways for charge carrier transport while the AgNWs can connect the skeleton to further enhance the transmittance and electrical conductivity. To analyze the EMI shielding mechanisms of the hierarchical lm, Fig.…”

Superhydrophobic and Flexible Silver Nanowire-Coated Cellulose Filter Papers with Sputter-Deposited Nickel Nanoparticles for Ultrahigh Electromagnetic Interference Shielding

“…Therefore, AgNWs exhibiting surpassing electrical conductivity (6.3 × 10 7 S/m) are regarded as one of the potential fillers in CPC-based EMI shielding materials . Many high-performance CPC-based EMI materials containing AgNWs have been fabricated by coating, , casting, spraying, and filtration. , Dip coating, a commonly used coating technology, has been proven to be a very efficient method owing to their cost-effectiveness, easy processability, and high scalability compared with other coating approaches, that is, bar coating and spin coating. , In this context, AgNW/cellulose papers prepared via a dip-coating process exhibited an outstanding electrical conductivity (6751 S/m) and a high EMI shielding effectiveness (SE, ∼48.6 dB) …”

Robust, flexible, and high-performance electromagnetic interference shielding films with long-lasting service

“…[9][10][11][12][13] Among conductive llers, silver nanowires (AgNWs) are attractive to researchers because of their excellent electrical conductivity (6.3 Â 10 7 S m À1 ) and high aspect ratio, which is benecial in constructing a conductive network at low concentration. 14,15 To improve the performance of AgNWs and obtain excellent CPC-based EMI shielding materials, a conductive network with interconnected AgNWs was formed on the surface of polymer lms by spraying 16 and coating. 17 Lee et al found that AgNW/ cellulose papers fabricated by the dip-coating method exhibited an electrical conductivity of 6751 S m À1 and EMI SE of $48.6 dB.…”