TY - JOUR
T1 - A MODIFIED VAN DER PAUW SETUP FOR MEASURING THE RESISTIVITY AND THERMOPOWER OF THERMOELECTRIC MATERIALS OF VARYING THICKNESSES
AU - HITCHCOCK, DALE
AU - WALDROP, SPENCER
AU - WILLIAMS, JARED
AU - TRITT, TERRY M.
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.
PY - 2013/10/17
Y1 - 2013/10/17
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.
AB - 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.
UR - http://hdl.handle.net/10754/597312
UR - https://www.worldscientific.com/doi/abs/10.1142/S1793604713400092
UR - http://www.scopus.com/inward/record.url?scp=84882307678&partnerID=8YFLogxK
U2 - 10.1142/S1793604713400092
DO - 10.1142/S1793604713400092
M3 - Article
SN - 1793-6047
VL - 06
SP - 1340009
JO - Functional Materials Letters
JF - Functional Materials Letters
IS - 05
ER -