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Concept for simultaneous measurement of Seebeck coefficient, electrical conductivity and thermal conductivity

: Nissila, J.; Jacquot, A.; Barb, Y.; Jägle, M.; Leppanen, M.; Manninen, A.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Instrumentation and Measurement Society:
29th Conference on Precision Electromagnetic Measurements, CPEM 2014 : Rio de Janeiro, Brazil, 24 - 29 August 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5205-2 (Print)
ISBN: 978-1-4799-2479-0
ISBN: 978-1-4799-2480-6
Conference on Precision Electromagnetic Measurements (CPEM) <29, 2014, Rio de Janeiro>
Conference Paper
Fraunhofer IPM ()
electrical conductivity measurement; measurement uncertainty; numerical analysis; reliability; Seebeck effect; thermal conductivity measurement

Measurements of physical transport properties of thermoelectric materials are plagued by large uncertainties (of tens of percent). Development of new materials towards larger efficiency in converting heat into electrical energy would benefit from improved measurement reliability. We are proposing to extend the 3omega method for the simultaneous measurement of the Seebeck coefficient, electrical conductivity and thermal conductivity using test structures fabricated directly on the sample surface. Assisted by numerical simulations the method could allow reliable characterization of anisotropic materials.