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Comparison of Thermoelectric Transport Measurement Techniques Using n-type PbSe

Wang, Heng and Fedorov, Mikhail I. and Shabaldin, Aleksander A. and Konstantinov, Piotr P. and Snyder, G. Jeffrey (2015) Comparison of Thermoelectric Transport Measurement Techniques Using n-type PbSe. Journal of Electronic Materials, 44 (6). pp. 1967-1971. ISSN 0361-5235.

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We compare high-temperature thermoelectric transport measurements at two different institutes using different setups. The material studied is n-type PbSe doped with Cl. The measurements at the Ioffe Institute used a steady-state design which allowed all three properties to be measured simultaneously from bar-shaped samples. Those at Caltech have used Van der Pauw geometry for resistivity, an oscillation method for the Seebeck coefficient, and a laser flash technique for thermal conductivity. The results for each individual property show differences around 10% in some cases, while the evaluation of overall zT for the three samples with different doping levels is mostly below 10%. The steady-state method at the Ioffe Institute was able to measure thermal conductivity at high temperature as accurately as the laser flash method. In general, great caution is needed for any setup in order to accurately measure high-temperature transport properties and hence zT.

Item Type:Article
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Snyder, G. Jeffrey0000-0003-1414-8682
Additional Information:© 2015 The Minerals, Metals & Materials Society. Received July 17, 2014; accepted December 31, 2014. Published online: 27 January 2015. This work was supported as part of the Solid-State Solar-Thermal Energy Conversion Center (S3TEC), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award # DE-SC0001299.
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0001299
Subject Keywords:Thermoelectrics, thermal conductivity, Seebeck coefficient, heat capacity
Issue or Number:6
Record Number:CaltechAUTHORS:20150202-150321346
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54308
Deposited By: Ruth Sustaita
Deposited On:03 Feb 2015 15:54
Last Modified:03 Oct 2019 07:56

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