| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Recently, thermoelectric materials generating electricity from waste heat have much attention and we have reported that some molecular compounds show particularly large Seebeck coefficient. The goal of our work is to discover the mechanism to exhibit the giant Seebeck effect (GSE). In this study, we focus on molecular shape which closely relates to the electronic state and perform several computational studies as well as experimental measurements. As a result, specific vibration mode is found in the GSE compounds from normal mode analysis with DFT calculations. Also, MD calculations give a low lattice thermal conductivity along the conductive direction. These dependencies can be partially seen in experimental results such as molecular orientation effect.
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