Highly Stretchable and Sensitive Multimodal Tactile Sensor Based on Conductive Rubber Composites to Monitor Pressure...

Area of Science:

• Materials Science
• Sensor Technology
• Nanotechnology

Background:

• Stretchable and flexible tactile sensors are crucial for advanced applications, offering superior sensitivity, flexibility, and biocompatibility.
• Developing high-performance, stretchable multimodal sensors remains a significant challenge in the field.

Purpose of the Study:

• To fabricate a stretchable multimodal tactile sensor capable of simultaneously measuring pressure and temperature.
• To investigate the potential of conductive rubber composites for high-performance sensor applications.

Main Methods:

• Fabrication of a stretchable multimodal tactile sensor utilizing conductive rubber composites.
• Characterization of the sensor's pressure-sensitive and temperature-sensitive properties.
• Evaluation of sensor performance, including sensitivity, sensing range, processability, stretchability, and repeatability.

Main Results:

• The developed sensor exhibits high sensitivity for both pressure (0.01171 kPa⁻¹) and temperature (2.46–30.56%/°C) over wide ranges (0–110 kPa and 30–90 °C).
• The sensor demonstrates excellent processability, stretchability, and repeatability.
• The fabricated sensor does not require complex signal processing or transmission circuitry.

Conclusions:

• The conductive rubber composite-based sensor offers a promising solution for simultaneous pressure and temperature sensing.
• The stacking and layering strategy for conductive rubber composites provides a novel approach for creating multifunctional sensor-based electronics.
• This work contributes to the advancement of stretchable and flexible sensor technologies for diverse applications.