| Project/Area Number |
25620149
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Energy-related chemistry
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| Research Institution | Niigata University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
NAKANO Haruyuki 九州大学, 理学研究院, 教授 (90251363)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ジアザポルフィリン / 核置換 / アザジピリン / 分子内電荷移動 / 近赤外光 / クロスカップリング / ホウ素錯体 / 光物性 / 電気化学特性 / ジピリン / 吸収特性 / 発光特性 |
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| Outline of Final Research Achievements |
In this research project, we aimed to create new core-modified azaporphyrins that absorb visible-near infrared (NIR) light for application to organic solar cells. First, we established a general method for introducing π-conjugative substituents onto the peripheral carbons of diazaporphyrins. We investigated the optical and electrochemical properties of the newly prepared diazaporphyrins. The introduction of an electron-donating substituent to the peripheral carbon causes a large enhancement of the visible-light harvesting ability of the diazaporphyrin π-system. Second, we synthesized novel dipyrrin-boron and azadipyrrin-boron complexes bearing π-conjugative substituents on the pyrrole rings. We have revealed that the aza-substitution of π-extended dipyrrin-boron complexes is an efficient method for enhancing the NIR light-harvesting ability.
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