| Budget Amount *help |
¥31,200,241 (Direct Cost: ¥24,000,186、Indirect Cost: ¥7,200,055)
Fiscal Year 2015: ¥2,600,241 (Direct Cost: ¥2,000,186、Indirect Cost: ¥600,055)
Fiscal Year 2014: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2012: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2011: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
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| Outline of Final Research Achievements |
Chlorophyll (Chl) c is the natural porphyrin widely distributed in the oceanic phototrophs. It harvests light energy and deliver it to the photoreaction center when bound to the photosynthetic pigment-protein complexes. Chl c also can make a chemical bond to TiO2 through its carboxy end group to inject electron with as high as 5% of incident photon to current conversion efficiency when fabricated in a dye-sensitized solar cell. This work aimed to elucidate the excited-state properties of Chl c, which must be a clue to clarify those molecular mechanisms performed by Chl c. First, we have successfully purified Chl c, which is a hardly-separated organic-acid and is present as a minor component in the brown alga, by introducing a high-speed counter current chromatography. Second, we observed a systematic change in the optical properties of the Chl c depending on the pH of the organic solvent. Finally fs-time-resolved absorption spectroscopy of Chl c was recorded in several conditions.
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