| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Research Abstract |
Influence of defect on the thermoelectric properties of divalent hexaborides (CaB_6, SrB_6, YbB_6) were examined. Carrier concentration of the hexabiredes we examined was changed by synthesis condition, and as the result, electrical conductivity and the Seebeck coefficient were varied as a function of the carrier concentration. Chemical and crystal structure analyses revealed that metaliboron ratio affects the carrier concentration. In addition, p-n control was demonstrated in the YbB_6.
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