| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Outline of Final Research Achievements |
In order to develop high performance dye-sensitized solar cells (DSSC), we have designed and developed a new-type of D-π-A dye sensitizers with pyridyl group as an electron-withdrawing-injecting anchoring group, which can adsorb onto TiO2 electrode through the formation of coordinate bonding between the pyridyl group of the dye and the Lewis acid site (exposed Tin+ cations) on the TiO2 surface. Moreover, D-π-Cat dyes with a diphenylamine moiety as electron-donating group, a catechol (Cat) unit as anchoring group and fluorene or carbazole as π-conjugated system have been designed and developed. We fabricated the DSSCs based on these dyes. This work revealed the electron injection mechanism from the dyes to the conduction band of the TiO2 electrode and the photovoltaic performances of DSSCs based on these dyes.
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