Wearable magnetic field sensors for flexible electronics.

Area of Science:

• Materials Science
• Electrical Engineering
• Physics

Background:

• Hall effect sensors are crucial for magnetic field detection.
• Flexible electronics offer new application possibilities in wearables and automotive sectors.
• Bismuth-based materials present unique properties for sensor development.

Purpose of the Study:

• To fabricate highly flexible bismuth Hall sensors on polymeric foils.
• To identify key optimization steps for enhancing sensor sensitivity.
• To explore applications in wearable electronics and eMobility.

Main Methods:

• Fabrication of bismuth Hall sensors on flexible polymeric substrates.
• Systematic optimization of sensor parameters to improve performance.
• Integration and testing of sensors in wearable device prototypes.

Main Results:

• Successfully fabricated highly flexible bismuth Hall sensors.
• Identified critical optimization steps that significantly increased sensor sensitivity.
• Demonstrated sensor functionality as an interactive pointing device for wearables.
• Highlighted potential for eMobility applications, including eMotors and magnetic bearings.

Conclusions:

• Flexible bismuth Hall sensors can achieve bulk sensitivity through targeted optimization.
• These sensors are suitable for interactive wearable devices.
• The technology holds significant promise for the eMobility market.