Effects of temperature dependent chemical potential on the Seebeck coefficient of TiS2 thermoelectric material

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2011 English Publisher:Springer Science and Business Media LLCJournal:MRS Proceedings, volume 1,314 (issn: 0272-9172, eissn: 1946-4274,

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Authors: Tsunehiro Takeuchi; Akio Yamamoto; Koto Ogawa;

doi: 10.1557/opl.2011.513

Effects of temperature dependent chemical potential on the Seebeck coefficient of TiS2 thermoelectric material

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Abstract

ABSTRACTThe relation between chemical potential and Seebeck coefficient was investigated by using high-resolution angle resolved photoemission spectroscopy. The temperature dependence of chemical potential was experimentally determined for the n-type TiS2 thermoelectric material and compared with the measured Seebeck coefficient. We found that the temperature dependence of chemical potential of TiS2 is significantly large, and its effect on Seebeck coefficient is not negligible. This fact strongly indicates that the temperature dependence of chemical potential has to be properly understood to construct the guiding principle for developing new, practical thermoelectric materials.

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Nagoya University
Japan

27 Research products, page 1 of 3

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