| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
Polysilanes have attracted much attention as the electronic properties arising from σ-conjugation along the Si-Si backbone. Despite some reports on a physical mixing polysilanes with fullerene, C60-grafted linear type polysilanes or C60-subtituted highly branched polysilanes, polysilane dendrimers, had never been synthesized and well characterized. In this study, synthesis of the linear-type polysilanes and branched-type polysilane dendrimers containing C60 by covalent bonding were successful. Characterization and electronic spectra (UV-vis and emission) for the resulting C60-grafted polysilanes and fulleropolysilane dendrimers were also investigated. Especially diminished fluorescence spectra for C60-grafted polysilanes under the condition of 310 nm excite wavelength was observed, suggesting that the light emitted charge transfer took place from sigma-conjugated Si-Si backbone to the fullerene.
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