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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
Published on: December 11, 2013
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Simulation of electrical conductivity for polymer silver nanowires systems
Ali Mohammadpour-Haratbar1, Yasser Zare2, Kyong Yop Rhee3
1Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran.
Scientific Reports
|January 2, 2023
Summary
A new model predicts electrical conductivity in silver nanowire (AgNW) polymer composites. High aspect ratio AgNWs and thicker interphases enhance conductivity by improving network formation and percolation.
Area of Science:
- Materials Science
- Polymer Science
- Nanotechnology
Background:
- Polymeric systems reinforced with silver nanowires (AgNWs) are crucial for conductive applications.
- Understanding the factors influencing their electrical conductivity is essential for material design.
Purpose of the Study:
- To develop a simple model for predicting the electrical conductivity of AgNW-polymer nanocomposites.
- To investigate the impact of various parameters on percolation and conductivity.
Main Methods:
- Development of a theoretical model for conductivity.
- Validation of the model using experimental data from AgNW-reinforced samples.
- Analysis of parameters including interphase thickness, tunneling distance, nanowire waviness, aspect ratio, and filler volume fraction.
Main Results:
- The model accurately predicts conductivity based on experimental measurements.
- High aspect ratio AgNWs promote a larger network and lower percolation onset, enhancing conductivity.
- Increased interphase thickness expands the conductive network, leading to higher electrical conductivity.
- Non-waved AgNWs demonstrate superior conductivity compared to wavy ones.
Conclusions:
- Nanowire volume fraction, aspect ratio, interphase thickness, and tunneling distance are key factors influencing nanocomposite conductivity.
- Surface energies of the polymer and nanowires do not significantly affect conductivity.
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