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Updated: Aug 20, 2025

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

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Published on: December 11, 2013

Silver Nanowires Coated Nitrocellulose Paper for High-Efficiency Electromagnetic Interference Shielding.

Raghunath Sahoo^1,2, Ramaprabhu Sundara², Subramanian Venkatachalam¹

¹Microwave Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai, Tamil Nadu600036, India.

|November 21, 2022

Summary

Researchers developed silver nanowire (AgNWs) coated nitrocellulose (NC) paper for electromagnetic interference (EMI) shielding. This eco-friendly material offers exceptional conductivity and EMI shielding effectiveness for electronic devices.

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Published on: January 21, 2016

Area of Science:

Materials Science
Nanotechnology
Electrical Engineering

Background:

Thin, conductive coatings are essential for protecting sensitive electronics.
Environmentally friendly polymers are increasingly sought after for device applications.

Purpose of the Study:

To fabricate and analyze silver nanowire (AgNWs) coated nitrocellulose (NC) paper for electromagnetic interference (EMI) shielding.
To investigate the structural and EMI shielding performance of AgNWs/NC composite materials.

Main Methods:

Vacuum-assisted filtration was employed to create AgNWs coated NC papers.
Filtrate volume was varied to optimize the coating.
Structural analysis and EMI shielding effectiveness measurements were performed.

Main Results:

A submicron thick, lightweight paper with a 2D in-planar AgNW structure on a rough NC surface was achieved.
Exceptional electrical conductivity of 8603 S/m was observed due to a strongly interconnected AgNW network.
Ultrahigh EMI shielding effectiveness of 69.4 dB across the X-band (8-12 GHz) was obtained with minimal AgNW coating.

Conclusions:

AgNWs coated NC paper exhibits promising EMI shielding properties due to interconnected current loops and magnetic losses.
The simple fabrication process makes these materials suitable for emerging electronic devices.
This eco-friendly composite offers a viable solution for EMI shielding challenges.