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 journalArticlepeer-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 languageEnglish
Pages (from-to)175-178
Number of pages4
JournalJournal of Combinatorial Chemistry
Volume10
Issue number2
DOIs
Publication statusPublished - 2008 Mar

ASJC Scopus subject areas

  • Chemistry(all)

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