Eintrag in der Universitätsbibliographie der TU Chemnitz
Volltext zugänglich unter
URN: urn:nbn:de:bsz:ch1-qucosa-191026
Melzer, Michael
Schmidt, Oliver G. (Prof. Dr.) ; Bauer, Siegfried (Prof. Dr.) (Gutachter)
Dehnbare Magnetoelektronik
Stretchable Magnetoelectronics
Kurzfassung in englisch
In this work, stretchable magnetic sensorics is successfully established by combining metallic thin films revealing a giant magnetoresistance effect with elastomeric materials. Stretchability of the magnetic nanomembranes is achieved by specific morphologic features (e.g. wrinkles), which accommodate the applied tensile deformation while maintaining the electrical and magnetic integrity of the sensor device. The entire development, from the demonstration of the world-wide first elastically stretchable magnetic sensor to the realization of a technology platform for robust, ready-to-use elastic magnetoelectronics with fully strain invariant properties, is described. The prepared soft giant magnetoresistive devices exhibit the same sensing performance as on conventional rigid supports, but can be stretched uniaxially or biaxially reaching strains of up to 270% and endure over 1,000 stretching cycles without fatigue. The comprehensive magnetoelectrical characterization upon tensile deformation is correlated with in-depth structural investigations of the sensor morphology transitions during stretching.With their unique mechanical properties, the elastic magnetoresistive sensor elements readily conform to ubiquitous objects of arbitrary shapes including the human skin. This feature leads electronic skin systems beyond imitating the characteristics of its natural archetype and extends their cognition to static and dynamic magnetic fields that by no means can be perceived by human beings naturally. Various application fields of stretchable magnetoelectronics are proposed and realized throughout this work. The developed sensor platform can equip soft electronic systems with navigation, orientation, motion tracking and touchless control capabilities. A variety of novel technologies, like smart textiles, soft robotics and actuators, active medical implants and soft consumer electronics will benefit from these new magnetic functionalities.
| Universität: | Technische Universität Chemnitz | |
| Institut: | Professur Materialsysteme der Nanoelektronik | |
| Fakultät: | Fakultät für Naturwissenschaften | |
| Dokumentart: | Dissertation | |
| Betreuer: | Schmidt, Oliver G. (Prof. Dr.) | |
| URL/URN: | http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-191026 | |
| SWD-Schlagwörter: | Magnetoelektronik , Riesenmagnetowiderstand , Sensor , Dünne Schicht , Elastomer , Weiche Materie , Morphologie , Falten | |
| Freie Schlagwörter (Deutsch): | Dehnbare Elektronik , Magnetoelektronik , Riesenmagnetowiderstand , Magnetische Sensorik , Dünne Schichten , Magnetische Materialien , Magnetische Nanomembranen , Verspannte Nanomenbranen , Künstliche Haut | |
| Freie Schlagwörter (Englisch): | stretchable electronics , magnetoelectronics , giant magnetoresistance , magnetic sensorics , soft matter , thin films , magnetic materials , magnetic nanomembranes , strained nanomembranes , electronic skin | |
| DDC-Sachgruppe: | Klassische Mechanik; Festkörpermechanik, Elektrizität, Elektronik, Magnetismus | |
| Tag der mündlichen Prüfung | 19.11.2015 |
