| Project/Area Number |
14F04051
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Osaka University |
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Principal Investigator |
尾崎 雅則 大阪大学, 工学(系)研究科(研究院), 教授 (50204186)
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| Co-Investigator(Kenkyū-buntansha) |
DAO QUANG-DUY 大阪大学, 工学(系)研究科(研究院), 外国人特別研究員
DAO Quang-Duy 大阪大学, 工学(系)研究科(研究院), 外国人特別研究員
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| Project Period (FY) |
2014-04-25 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2015: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2014: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Phthalocyanine / Organic solar cell / Tandem solar cell / Liquid crystal / Organic semiconductor / Organic Solar cell / Processing additive |
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| Outline of Annual Research Achievements |
1. Effects of thermal-annealing and processing-additive treatment in organic solar cells (OSCs): Effects of thermal-annealing and processing-additive treatment on crystallization-induced phase separation and photovoltaic performance in bulk heterojunction (BHJ) OSCs utilizing non-peripherally substituted octapentyl tetrabenzotriazaporphyrin (C5TBTAPH2) mixed in 1-(3-methoxycarbonyl)propyl-1-phenyl-(6,6)C71 (PCBM) were reported. By using either thermal-annealing or processing-additive treatment, the C5TBTAPH2-crystallite sizes in the BHJ films were enlarged and the power conversion efficiencies (PCEs) were increased due to improvement of the crystallization-induced phase separation. However, the optimum PCE of the processing-additive treated devices was higher than those PCE of devices treated by thermal annealing. These results were discussed by taking the thermal properties and molecular aggregation of PCBM into consideration.
2. All-solution processalbe tandem cell using mesogenic phthalocyanine: The photovoltaic performance of BHJ OSCs using C6TBTAPH2 limits due to the weak absorption at around 500 nm. I have fabricated the tandem solar cell with all-solution processed multilayer structure utilizing a conventional structure composed of C6TBTAPH2 and poly(3-hexylthiophene) (P3HT). The P3HT single cell give a maximum the external quantum efficiency at 500 nm, and the C6TBTAPH2 single cell has two predominant peaks at 720 and 350 nm. The tandem solar cells with stacking of the two composite thin films cover the all visible spectral range and the PCE of 3.2% was achieved.
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| Research Progress Status |
27年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
27年度が最終年度であるため、記入しない。
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