High-throughput screening for combinatorial thin-film library of thermoelectric materials

Masaki Watanabe; Takuji Kita; Tomoteru Fukumura; Akira Ohtomo; Kazunori Ueno; Masashi Kawasaki

doi:10.1021/cc700094a

High-throughput screening for combinatorial thin-film library of thermoelectric materials

Masaki Watanabe, Takuji Kita, Tomoteru Fukumura, Akira Ohtomo, Kazunori Ueno, Masashi Kawasaki

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

16 Citations (Scopus)

Abstract

A high-throughput method has been developed to evaluate the Seebeck coefficient and electrical resistivity of combinatorial thin-film libraries of thermoelectric materials from room temperature to 673 K. Thin-film samples several millimeters in size were deposited on an integrated Al₂O ₃ substrate with embedded lead wires and local heaters for measurement of the thermopower under a controlled temperature gradient. An infrared camera was used for real-time observation of the temperature difference ΔT between two electrical contacts on the sample to obtain the Seebeck coefficient. The Seebeck coefficient and electrical resistivity of constantan thin films were shown to be almost identical to standard data for bulk constantan. High-throughput screening was demonstrated for a thermoelectric Mg-Si-Ge combinatorial library.

Original language	English
Pages (from-to)	175-178
Number of pages	4
Journal	Journal of Combinatorial Chemistry
Volume	10
Issue number	2
DOIs	https://doi.org/10.1021/cc700094a
Publication status	Published - 2008 Mar

ASJC Scopus subject areas

Chemistry(all)

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10.1021/cc700094a

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abstract = "A high-throughput method has been developed to evaluate the Seebeck coefficient and electrical resistivity of combinatorial thin-film libraries of thermoelectric materials from room temperature to 673 K. Thin-film samples several millimeters in size were deposited on an integrated Al2O 3 substrate with embedded lead wires and local heaters for measurement of the thermopower under a controlled temperature gradient. An infrared camera was used for real-time observation of the temperature difference ΔT between two electrical contacts on the sample to obtain the Seebeck coefficient. The Seebeck coefficient and electrical resistivity of constantan thin films were shown to be almost identical to standard data for bulk constantan. High-throughput screening was demonstrated for a thermoelectric Mg-Si-Ge combinatorial library.",

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AU - Fukumura, Tomoteru

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AU - Ueno, Kazunori

AU - Kawasaki, Masashi

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