Measurement of the thermoelectric properties of bulk and thin film materials

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Description

The figure-of-merit (Z) of a thermoelectric material is defined as Z = S{sup 2}/{rho}k, where S is the Seebeck coefficient, {rho} is the electrical resistivity, and k is the thermal conductivity. Since Z is composed of three components, it is sensitive to measurement errors in each of the components. For example, a Seebeck coefficient measurement which is only 17% high combined with electrical resistivity and thermal conductivity measurements which are 17% too low will result in a Z value which is double the correct value. It is therefore important to observe correct technique when performing measurements of S, {rho}, and ... continued below

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Medium: P; Size: 40 p.

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Danielson, L. March 1, 1996.

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Description

The figure-of-merit (Z) of a thermoelectric material is defined as Z = S{sup 2}/{rho}k, where S is the Seebeck coefficient, {rho} is the electrical resistivity, and k is the thermal conductivity. Since Z is composed of three components, it is sensitive to measurement errors in each of the components. For example, a Seebeck coefficient measurement which is only 17% high combined with electrical resistivity and thermal conductivity measurements which are 17% too low will result in a Z value which is double the correct value. It is therefore important to observe correct technique when performing measurements of S, {rho}, and k; and to recognize the limitations of the measurements. The purpose of the course is to address some of those issues in order to increase the accuracy of the thermoelectric measurements.

Physical Description

Medium: P; Size: 40 p.

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OSTI as DE98006444

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  • 15. International conference on Thermoelectrics (ICT 96), Pasadena, CA (United States), 26-29 Mar 1996

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  • Other: DE98006444
  • Report No.: KAPL-P--000033
  • Report No.: CONF-960334--
  • Grant Number: AC12-76SN00052
  • Office of Scientific & Technical Information Report Number: 663573
  • Archival Resource Key: ark:/67531/metadc708906

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  • March 1, 1996

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • May 16, 2016, 4:56 p.m.

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Danielson, L. Measurement of the thermoelectric properties of bulk and thin film materials, article, March 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc708906/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.