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A flexible and highly sensitive pressure sensor based on three-dimensional electrospun carbon nanofibers
Chuan Cai1, He Gong1, Weiping Li2
1College of Information Technology, Jilin Agricultural University 2888 Xincheng Street Changchun 130118 China lsj0883@sina.com.
RSC Advances
|April 15, 2022
Summary
Researchers developed a highly sensitive flexible pressure sensor using ferrosoferric oxide (Fe3O4) and carbon nanofibers (FeOCN). This advanced sensor shows promise for real-time healthcare monitoring applications.
Area of Science:
- Materials Science
- Nanotechnology
- Sensor Technology
Background:
- High-performance flexible pressure sensors are crucial for advanced healthcare monitoring, human-machine interfaces, and electronic skin applications.
- Existing sensors often face limitations in sensitivity, working range, or durability.
Purpose of the Study:
- To fabricate a novel flexible pressure sensor with enhanced sensitivity and performance.
- To explore the potential of ferrosoferric oxide (Fe3O4)/carbon nanofibers (FeOCN) composites for pressure sensing.
Main Methods:
- Fabrication of the Fe3O4/carbon nanofibers (FeOCN) composite using three-dimensional electrospinning.
- Post-fabrication heat treatment to optimize sensor properties.
- Characterization of sensor performance, including sensitivity, detection limit, response time, and stability.
Main Results:
- The FeOCN pressure sensor achieved a wide working range (0-4.9 kPa) and high sensitivity (0.545 kPa⁻¹).
- An ultralow detection limit of 6 Pa was recorded, alongside a rapid response time and excellent stability.
- The sensor demonstrated high hydrophobicity and remarkable flexibility.
Conclusions:
- The fabricated FeOCN flexible pressure sensor exhibits superior performance characteristics.
- The sensor's ability to accurately detect physiological signals like pulse, breathing, and phonation highlights its potential for real-time healthcare monitoring.
