2015 Fiscal Year Final Research Report
Organic solar cells made from dense platinum clusters and branched zinc oxide nanorods
| Project/Area Number |
25410024
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Josai University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 酸化亜鉛 / 酸化チタン / ナノ粒子 / ナノロッド / 色素増感太陽電池 / 発光分光 / エネルギー変換 / 有機色素 |
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| Outline of Final Research Achievements |
Aiming at dye-sensitized solar cells with higher power conversion efficiencies, we have fabricated cells consisting of nanorods of ZnO, Pt nanoparticles, and donor-π-acceptor (D-π-A) type organic dyes. First, optimization has been made for the dimensions of thin films of ZnO nanorods or core-shell-structured ZnO-TiO2. Second, platinum nanoparticles of < 5 nm were synthesized using a polyol method. The purity, average size, and extent of aggregation were found to be sensitive to the temperature for the reduction of platinum ions. Third, we have designed and synthesized various D-π-A organic dyes, the structures of which contain the derivatives of triphenylamine for the electron donor, a π-conjugated bridge, and cyanoacrylic-acid for the acceptor. Solar cells fabricated and transient emission spectroscopy have revealed a noticeable photoinduced charge separation inside the dye molecules and efficient electron injection to the conduction band of TiO2 through the anchoring unit.
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| Free Research Field |
物理化学
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