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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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Recent Advances in Flexible Piezoresistive Arrays: Materials, Design, and Applications
Shuoyan Xu1,2, Zigan Xu1,2, Ding Li1,2
1School of Integrated Circuit, Tsinghua University, Beijing 100084, China.
Polymers
|June 28, 2023
Summary
Flexible piezoresistive sensor arrays offer enhanced spatial perception for wearables and robotics. This review details design, materials, and fabrication for improved tactile sensing and reduced crosstalk in human-machine interfaces (HMI).
Area of Science:
- Materials Science
- Engineering
- Robotics
Background:
- Flexible pressure sensors are crucial for advanced human-machine interfaces (HMI), wearable health devices, and bionic robots, enabling precise tactile perception.
- Piezoresistive sensor arrays are extensively researched for their high performance and simple readout, making them ideal for monitoring health information and enhancing robotic dexterity.
Purpose of the Study:
- To review design considerations and recent advancements in flexible piezoresistive sensor arrays.
- To highlight strategies for improving sensor performance, addressing crosstalk, and exploring fabrication methods.
- To present applications in human-interactive systems, healthcare, and other fields, with future outlooks.
Main Methods:
- Introduction of various piezoresistive materials and microstructures to enhance sensor performance.
- Discussion of spatial distribution perception in sensor arrays, focusing on mechanical and electrical crosstalk mitigation.
- Overview of fabrication techniques including printing, field-assisted, and laser-assisted methods.
Main Results:
- Strategies for improving sensor performance and spatial perception in flexible piezoresistive arrays are presented.
- Crosstalk issues in sensor arrays and their solutions are critically examined.
- Representative applications demonstrate the utility of these arrays in diverse fields.
Conclusions:
- Flexible piezoresistive sensor arrays are key to advancing tactile sensing in various applications.
- Further development in materials, design, and fabrication will enhance performance and expand their use.
- Addressing crosstalk remains a critical factor for reliable array functionality.
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