Silver-Nanowire-Based Elastic Conductors: Preparation Processes and Substrate Adhesion.

Area of Science:

• Materials Science
• Electrical Engineering
• Robotics

Background:

• Flexible electronic systems require robust, stretchable conductive materials.
• Silver nanowires offer high conductivity, transparency, and flexibility for these applications.
• System-level flexible electronics, such as autonomous robots, demand improved conductor conductivity and physical robustness.

Purpose of the Study:

• To review and recommend effective preparation processes and substrate adhesion strategies for silver nanowire-based composite conductors.
• To enhance the conductivity and robustness of flexible electronic systems.
• To discuss advancements relevant to 3D printing and soft robotics.

Main Methods:

• Reviewed four elastic preparation processes: pretensioned/geometrically topological matrix, conductive fiber, aerogel composite, and mixed percolation dopant.
• Reviewed five adhesion processes: coating, embedding, changing surface energy, chemical bonding, and adjusting tension/diffusion.
• Evaluated strategies for enhancing composite conductor adhesion on silver nanowire substrates.

Main Results:

• Identified mixed percolation doping as a recommended preparation process.
• Recommended embedding/chemical bonding as a suitable adhesion mode for non-special conditions.
• Highlighted the importance of conductor conductivity and physical robustness for system-level flexible electronics.

Conclusions:

• Mixed percolation doping combined with embedding/chemical bonding offers a promising approach for creating robust silver nanowire composite conductors.
• These advancements are crucial for developing next-generation flexible electronics, including soft robots and 3D-printed devices.
• Further research into conductor conductivity and physical robustness is essential for system-level integration.