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Helically Intersected Conductive Network Design for Wearable Electronic Devices: From Theory to Application
Yijun Li1, Kailin Zhang1, Qiang Geng1
1State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
ACS Applied Materials & Interfaces
|February 24, 2021
Summary
This study introduces a novel flow-manipulated method for creating wearable strain sensors with a unique conductive network. These sensors offer multidimensional sensing and robust performance for smart devices.
Area of Science:
- Materials Science
- Wearable Electronics
- Sensor Technology
Background:
- Flexible and stretchable strain sensors are vital for wearable electronics, enabling smart device control.
- Challenges exist in designing conductive networks for both resourcefulness and industrial-scale production.
Purpose of the Study:
- To develop a new flow-manipulated strategy for preparing wearable strain sensors.
- To create sensors with a helically intersected conductive network for enhanced performance and integration.
Main Methods:
- Utilized a flow-manipulated strategy to create a helically intersected conductive network within an elastomer ring.
- Employed simulation and experimental verification to analyze sensor properties.
- Constructed a control system using smart rings for practical demonstrations.
Main Results:
- The developed strain sensor exhibits easy integration, multidimensional sensibility, and robust mechanical properties.
- Achieved a tunable gauge factor (10.41-31.12), wide linear region (0-40°), and mechanical robustness (∼7 MPa, ∼1400%).
- Demonstrated rapid response time (∼300 ms) and successful application in controlling industrial robotic arms and remote-controlled cars.
Conclusions:
- The flow-manipulated strategy offers a viable approach for large-scale production of advanced wearable strain sensors.
- The smart ring technology shows significant potential for applications in space exploration, underwater exploration, intelligent robotics, and human-machine interfaces.
