A MODIFIED VAN DER PAUW SETUP FOR MEASURING THE RESISTIVITY AND THERMOPOWER OF THERMOELECTRIC MATERIALS OF VARYING THICKNESSES

DALE HITCHCOCK; SPENCER WALDROP; JARED WILLIAMS; TERRY M. TRITT

doi:10.1142/S1793604713400092

A MODIFIED VAN DER PAUW SETUP FOR MEASURING THE RESISTIVITY AND THERMOPOWER OF THERMOELECTRIC MATERIALS OF VARYING THICKNESSES

DALE HITCHCOCK, SPENCER WALDROP, JARED WILLIAMS, TERRY M. TRITT

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In the investigation of thermoelectric (TE) materials as a practical, and efficient, means of power generation/ refrigeration nearly ninety percent of the possible high-efficient binary compounds have been evaluated. But only a few proved to be useful such as Bi2Te3 alloys, PbTe and SiGe to name the most important materials. Therefore, in order to expand the research of high-efficiency TE materials new compounds and methods of efficiency optimization must be explored. There currently exist a vast number of uninvestigated ternary and quaternary materials that could be potential high-efficiency thermoelectric materials. The device and methodology discussed herein deal with rapidly measuring both the electrical resistivity and the Seebeck coefficient of thermoelectric materials, at a set temperature of T ≈ 300 K. Using nontraditional resistivity measurements and rapid, room-temperature thermopower measurements, a reliable and time-efficient means of gauging the power factor (defined below) values of newly synthesized thermoelectric materials is achievable. Furthermore, the efficacy of the van der Pauw technique for measuring the resistivity of thermoelectric materials has been verified. © World Scientific Publishing Company.

Original language	English (US)
Pages (from-to)	1340009
Journal	Functional Materials Letters
Volume	06
Issue number	05
DOIs	https://doi.org/10.1142/S1793604713400092
State	Published - Oct 17 2013
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We are grateful for helpful discussions with Dr. Jian He, and also the synthesis techniques developed by Jennifer Graff. We would like to acknowledge the support of a Faculty Initiated Collaboration (FIC) grant from the King Abdullah University of Science and Technology (KAUST) and previous support for much of the equipment from a DOE grant that is supported by a DOE/EPSCoR Implementation Grant (#DE-FG02-04ER46139), and the SC EPSCoR cost-sharing program.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "A MODIFIED VAN DER PAUW SETUP FOR MEASURING THE RESISTIVITY AND THERMOPOWER OF THERMOELECTRIC MATERIALS OF VARYING THICKNESSES",

abstract = "In the investigation of thermoelectric (TE) materials as a practical, and efficient, means of power generation/ refrigeration nearly ninety percent of the possible high-efficient binary compounds have been evaluated. But only a few proved to be useful such as Bi2Te3 alloys, PbTe and SiGe to name the most important materials. Therefore, in order to expand the research of high-efficiency TE materials new compounds and methods of efficiency optimization must be explored. There currently exist a vast number of uninvestigated ternary and quaternary materials that could be potential high-efficiency thermoelectric materials. The device and methodology discussed herein deal with rapidly measuring both the electrical resistivity and the Seebeck coefficient of thermoelectric materials, at a set temperature of T ≈ 300 K. Using nontraditional resistivity measurements and rapid, room-temperature thermopower measurements, a reliable and time-efficient means of gauging the power factor (defined below) values of newly synthesized thermoelectric materials is achievable. Furthermore, the efficacy of the van der Pauw technique for measuring the resistivity of thermoelectric materials has been verified. {\textcopyright} World Scientific Publishing Company.",

author = "DALE HITCHCOCK and SPENCER WALDROP and JARED WILLIAMS and TRITT, {TERRY M.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We are grateful for helpful discussions with Dr. Jian He, and also the synthesis techniques developed by Jennifer Graff. We would like to acknowledge the support of a Faculty Initiated Collaboration (FIC) grant from the King Abdullah University of Science and Technology (KAUST) and previous support for much of the equipment from a DOE grant that is supported by a DOE/EPSCoR Implementation Grant (#DE-FG02-04ER46139), and the SC EPSCoR cost-sharing program. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We are grateful for helpful discussions with Dr. Jian He, and also the synthesis techniques developed by Jennifer Graff. We would like to acknowledge the support of a Faculty Initiated Collaboration (FIC) grant from the King Abdullah University of Science and Technology (KAUST) and previous support for much of the equipment from a DOE grant that is supported by a DOE/EPSCoR Implementation Grant (#DE-FG02-04ER46139), and the SC EPSCoR cost-sharing program. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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N2 - In the investigation of thermoelectric (TE) materials as a practical, and efficient, means of power generation/ refrigeration nearly ninety percent of the possible high-efficient binary compounds have been evaluated. But only a few proved to be useful such as Bi2Te3 alloys, PbTe and SiGe to name the most important materials. Therefore, in order to expand the research of high-efficiency TE materials new compounds and methods of efficiency optimization must be explored. There currently exist a vast number of uninvestigated ternary and quaternary materials that could be potential high-efficiency thermoelectric materials. The device and methodology discussed herein deal with rapidly measuring both the electrical resistivity and the Seebeck coefficient of thermoelectric materials, at a set temperature of T ≈ 300 K. Using nontraditional resistivity measurements and rapid, room-temperature thermopower measurements, a reliable and time-efficient means of gauging the power factor (defined below) values of newly synthesized thermoelectric materials is achievable. Furthermore, the efficacy of the van der Pauw technique for measuring the resistivity of thermoelectric materials has been verified. © World Scientific Publishing Company.

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A MODIFIED VAN DER PAUW SETUP FOR MEASURING THE RESISTIVITY AND THERMOPOWER OF THERMOELECTRIC MATERIALS OF VARYING THICKNESSES

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