Planar platform for temperature dependent four-wire impedance spectroscopy : a novel tool to characterize functional materials

Title data

Hagen, Gunter ; Kita, Jaroslaw ; Izu, Noriya ; Röder-Roith, Ulla ; Schönauer-Kamin, Daniela ; Moos, Ralf:
Planar platform for temperature dependent four-wire impedance spectroscopy : a novel tool to characterize functional materials.
In: Sensors and Actuators B: Chemical. Vol. 187 (2013) . - pp. 174-183.
ISSN 0925-4005
DOI: https://doi.org/10.1016/j.snb.2012.10.068

Official URL:

Abstract in another language

Electroceramic functional materials often need to be characterized in a sensor-like setup close to application. We present a novel sensor transducer that allows four-wire impedance spectroscopy of planar thick-film materials. Fast and easy temperature adjustment is possible by an integrated heater element. The tool can be manufactured either with Au or with Pt electrodes. The measurement of the transducers idle capacitance and calibration measurements with water covering allowed us to define a geometry factor, which is useful to determine specific materials parameters directly from the four-wire measurements. Characterization of three different kinds of materials (an n-type semiconductor, an oxygen ion-conductor and a sodium ion-conductor material) demonstrates the applicability of planar four-wire impedance spectroscopy as a powerful tool to investigate functional materials close to application.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Functional Materials Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos Faculties Profile Fields > Advanced Fields > Advanced Materials Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT Profile Fields Profile Fields > Advanced Fields Research Institutions Research Institutions > Research Centres
Result of work at the UBT:	Yes
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	12 Jan 2015 12:54
Last Modified:	14 Apr 2016 07:15
URI:	https://eref.uni-bayreuth.de/id/eprint/5471