Efficient thermoelectric van der Pauw measurements
Efficient thermoelectric van der Pauw measurements
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DOI：
10.1063/1.3609325
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发表时间：
2011-07
影响因子：
4
通讯作者：
J. Boor;V. Schmidt
中科院分区：
文献类型：
--
作者：
J. Boor;V. Schmidt
The development of powerful thermoelectric materials requires fast and simple characterization techniques. We combine three measurements to obtain a complete thermoelectric characterization. The electrical conductivity is measured by the van der Pauw method, while ZT is determined directly by means of a Harman measurement. Finally, exploiting the analogy between electrical and thermal physics, a thermal van der Pauw measurement is performed and the sample Seebeck coefficient and thermal conductivity can be determined. No temperature differences need to be measured; all quantities can be deduced from voltage measurements concurrently on the same sample which allows for quick and convenient material screening.
