P2.9.13 Temperature-controlled sensor transducer for planar four-wire impedance spectroscopy

G. Hagen, J. Kita, U. Röder-Roith, D. Schönauer-Kamin, R. Moos & N. Izu
We present a novel tool for fast sensor or materials testing. A planar electrode structure on alumina substrate with internal heater allows four-wire impedance spectroscopy measurements. One can easily distinguish between conduction / relaxation mechanism resulting from the bulk material or the electrode interface. Investigations of YSZ thick films prove the applicability of the presented system.