abstract |
(57) [Summary] [Object] To provide an oxide-based thermoelectric conversion material that is highly safe and inexpensive, has excellent performance as a thermoelectric conversion material, is stable in characteristics, and is industrially useful. [Structure] A thermoelectric conversion material, characterized in that the composition ratio and the constituent crystal phase of a composite oxide composed of strontium oxide and titanium oxide, or strontium oxide, and barium oxide and titanium oxide are within specific ranges. |