Printed magnetoresistive sensors for recyclable magnetoelectronics
Xiaotao Wang1, Lin Guo1, Olha Bezsmertna1
1Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany r.xu@hzdr.de d.makarov@hzdr.de.
Journal of Materials Chemistry. A
|September 5, 2024
Summary
We created a recyclable printed magnetoresistive sensor using GMR microflakes and AMR microparticles. This flexible, low-cost sensor offers excellent performance and reduces environmental impact through reusability.
Area of Science:
- Materials Science
- Nanotechnology
- Sensor Technology
Background:
- Development of advanced magnetic field sensors is crucial for flexible electronics.
- Existing sensors often lack recyclability and environmental sustainability.
- Need for robust, scalable, and eco-friendly sensor solutions.
Purpose of the Study:
- To develop an innovative, recyclable printed magnetoresistive sensor.
- To utilize GMR microflakes and AMR microparticles for enhanced magnetic sensing.
- To evaluate the sensor's performance, flexibility, and environmental impact.
Main Methods:
- Fabrication of printed magnetoresistive sensors using GMR microflakes and AMR microparticles.
- Incorporation of PECH elastomer binder for mechanical and thermal properties.
- Characterization of magnetoresistance, flexibility, and thermal stability.
- Assessment of recyclability and reusability of sensor materials.
Main Results:
- Sensors achieved magnetoresistance values of 4.7% (100 mT) and 0.45% (30 mT).
- PECH binder provided excellent flexibility and temperature stability.
- Demonstrated full recyclability and reusability of sensor components without performance loss.
- Low energy consumption in production and material reusability confirmed reduced environmental impact.
Conclusions:
- The developed recyclable printed magnetoresistive sensor is suitable for flexible electronics.
- The sensor offers a sustainable, high-performance alternative to conventional magnetic sensors.
- This technology significantly reduces the environmental footprint of magnetic field sensing applications.
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