| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Research Abstract |
We have studied exciton dynamics of organic nanomaterials to realize efficient electron injection into semiconductor. We prepared aggregates, such as organic nanocrystals and dye molecule aggregate, on nanocrystalline TiO_2 films. Exciton dynamics of organic crystals, especially exciton fission process were studied by observing magnetic field effect of fluorescence. We found that electron injection from organic nanocrystals to TiO_2 occurs by means of transient absorption spectroscopy. Recombination process between an injected electron and a parent cation was also studied. Temperature dependence measurements were examined to characterize properties of electrons in TiO_2.
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