| 摘要 |
PROBLEM TO BE SOLVED: To provide a nano-composite thermoelectric conversion material which does not require material for phonon scattering particles separately and achieves uniform and fine dispersion of the phonon scattering particles. SOLUTION: The nano-composite thermoelectric conversion material, in which nano-sized phonon scattering particles are dispersed in a matrix formed of thermoelectric conversion material, is characterized by that oxide as a by-product during reduction of the thermoelectric conversion material is contained as the phonon scattering particle. The manufacturing method includes: a process for depositing the thermoelectric conversion material and depositing the by-product derived from a reductant by reducing a precursor solution of the thermoelectric conversion material; and a process for alloying the thermoelectric conversion material and forming oxide of the by-product by heat treatment. Preferably, NaBH<SB>4</SB>is used as the reductant, and H<SB>3</SB>BO<SB>3</SB>is generated as the by-product in reduction, and B<SB>2</SB>O<SB>3</SB>, which is oxide of it, is dispersed as the phonon scattering particle. COPYRIGHT: (C)2011,JPO&INPIT
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