Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 13: Magnetic Materials II

MA 13.6: Vortrag

Dienstag, 8. März 2016, 10:45–11:00, H31

Flexible arrays of printed giant magnetoresistive devices — •Alexander Kutscher, Daniil Karnaushenko, Dmitriy Karnaushenko, Denys Makarov, and Oliver Schmidt — IIN, IFW Dresden, Helmholtzstraße 20, Dresden, 01069 Germany

Lightweight, flexibility and imperceptibility of magnetoelectronics is dictated by the design of modern portable and wearable devices[1]. Diverse printing and thin-film technologies were applied to satisfy the needs of this novel shape of electronics to achieve large-scale and cheap fabrication[2] capabilities. Recently, was developed printable magnetosensorics[3] relying on the giant magnetoresistive effect(GMR), which has already entered the field of flexible electronics[4]. Fast, high yield and homogenous printing of the magnetic sensors have to be achieved for industrial and commercial applications. Arrays of printed GMR sensors were fabricated on thin polymeric foils using a commercial dispenser robot. The GMR ink is applied in a form of dots on top of foil over the printed silver electrodes by the dispense printing. Hundreds of sensors could be produced. Various parameters like paste composition, binder, toxicity, viscosity and the dispensing process were optimised to obtain safe and reliable fabrication process. The printed sensor arrays possess up to 25% ratio with a high yield(>90%) across the array, broad operating temperature range and resistivity in the range of hundreds of Ohms, which is sufficient even for the most demanding applications. [1]M. Melzer, et al., Nat. Commun. 6(2015) 1 [2]H. Kang, et al., Sci. Rep. 4(2014) 5387[3]D. Karnaushenko, et al., Adv. Mater. 24(2012) 4518[4]D. Karnaushenko, et al., Adv. Mater. 27(2015) 880