Berlin 2018 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 20: Focussed Session: Geometry- and Topology-Controlled Nanoarchitectures II
HL 20.4: Vortrag
Dienstag, 13. März 2018, 15:00–15:15, EW 015
Stretchable and Imperceptible Magnetoelectronics — •Michael Melzer1, Martin Kaltenbrunner2, Denys Makarov3, Daniil Karnaushenko1, Dmitriy Karnaushenko1, and Oliver G. Schmidt1,4 — 1IFW Dresden, Institute for Integrative Nanosciences, 01069 Dresden, Germany — 2JKU Linz, Soft Matter Physics, 4040 Linz, Austria — 3HZDR, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany — 4TU Chemnitz, Material Systems for Nanoelectronics, 90107 Chemnitz, Germany
Future electronic skin aims to mimic nature's original in functionality and appearance. While several of its features have recently been demonstrated in artificial counterparts, magnetoception allows going even beyond imitation and equip us with unfamiliar cognition.
Here we introduce e-skins with a magneto-sensory system[1] able to perceive the presence of static or dynamic magnetic fields. The demonstrated ultra-thin giant magnetoresistive (GMR) sensor foils are less than 2 um thick, extremely lightweight and feature unmatched flexibility and mechanical endurance, while maintaining the sensor characteristics of their rigid chip-based counterparts. A geometric transition from flat to a highly wrinkled surface on top of an elastic support, generates an outstanding stretchability of up to 270% with high long term stability.
Our ready-to-use sensing elements offer magnetic functionalities as well as motion and displacement sensorics for e-skins, soft robotics and medical implants.
[1] M. Melzer et al. Nature Communications 6, 6080 (2015).