| Budget Amount *help |
¥26,130,000 (Direct Cost: ¥20,100,000、Indirect Cost: ¥6,030,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2012: ¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
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| Outline of Final Research Achievements |
Electric conduction in organic semiconductors is one of the fundamental and important processes in organic electronics such as field-effect transistors and photovoltaic cells. The energy-vs-wavevector relation (i.e., energy band dispersion), obtained by angle-resolved photoemission spectroscopy, is a fundamental basis for understanding charge transport mechanisms of solids.
In the case of organic semiconductors, the energy band dispersion, originating from the quite weak intermolecular interaction (so-called intermolecular band dispersion), is difficult to observe precisely. By overcoming such a serious problem, in the present work, we have realized the precise and systematic examination of the intermolecular band dispersion. Based on the chemical substitution of molecules in the precise band-dispersion measurement, we have succeeded in the quantitative characterization of the correlation between the charge transport property and the crystalline structure in organic semiconductors.
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