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Laser-Induced Graphene for Pressure and Strain Sensors: Fabrication, Performance Optimization, and Applications
Penghui Chen1, Jinjing Yang1, Zhongxin Xu1
1School of Advanced Manufacturing, Sun Yat-sen University, Shenzhen, China.
Small (Weinheim an Der Bergstrasse, Germany)
|April 29, 2026
Summary
Laser-induced graphene (LIG) sensors offer advanced flexible pressure and strain detection. This review covers LIG sensor mechanisms, fabrication, optimization, and applications in health, robotics, and structural monitoring.
Area of Science:
- Materials Science
- Sensor Technology
- Nanotechnology
Background:
- Laser-induced graphene (LIG) is a versatile material with excellent electrical and mechanical properties, introduced in 2014.
- Flexible sensors are crucial for various applications, with LIG emerging as a key research area.
- LIG's unique characteristics make it suitable for developing high-performance pressure and strain sensors.
Purpose of the Study:
- To review recent advancements in laser-induced graphene (LIG)-based pressure and strain sensors.
- To analyze sensing mechanisms, performance metrics, and fabrication processes for LIG sensors.
- To highlight sensor optimization strategies, diverse applications, and future research directions.
Main Methods:
- Comprehensive literature review of LIG-based flexible sensors.
- Analysis of sensing mechanisms for pressure and strain detection.
- Examination of fabrication techniques, including precursor selection and laser processing.
- Discussion of sensor optimization strategies and performance evaluation.
Main Results:
- LIG sensors exhibit promising performance for pressure and strain sensing applications.
- Key fabrication parameters and optimization strategies for LIG sensors were identified.
- Diverse applications in health monitoring, human-machine interfaces, and robotics were highlighted.
Conclusions:
- LIG-based sensors represent a significant advancement in flexible sensor technology.
- Further research is needed to address current challenges and unlock the full potential of LIG sensors.
- LIG sensors are poised for widespread adoption across various technological fields.
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