| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Outline of Final Research Achievements |
We synthesized magnesium porphyrin derivatives as electron donors used for small-molecule solution-processable organic thin-film solar cells. Especially, we synthesize these derivatives by using two or four diketopyrrolopyrroles (DPPs) organic dyes connected to the porphyrin cores through triple bonds. In bulk heterojunction organic thin-film solar cells using these porphyrins as electron donors and fullerene derivatives as electron acceptors, we achieved 7.40% power conversion efficiency. We also revealed that magnesium porphyrins have higher solubility and longer excitation lifetime than zinc congeners.
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