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

Author

Nissila, J. ; Jacquot, Alexandre ; Barb, Yannick ; Jaegle, Martin ; Leppanen, Miika ; Manninen, Antti

Author_Institution

Centre for Metrol. & Accreditation (MIKES), Espoo, Finland

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

456

Lastpage

457

Abstract

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 3ω 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.

Keywords

Seebeck effect; electrical conductivity measurement; measurement uncertainty; numerical analysis; reliability; thermal conductivity measurement; 3ω method; Seebeck coefficient measurement; anisotropic material; electrical conductivity measurement; electrical energy conversion; heat conversion; measurement uncertainty; numerical simulation; physical transport property measurement; reliability; test structure; thermal conductivity measurement; thermoelectric material; Conductivity; Conductivity measurement; Materials; Temperature; Temperature measurement; Thermal conductivity; 3ω method; Seebeck coefficient; ZT meter; electrical conductivity; thermal conductivity; thermoelectric material;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898456

Filename

6898456