| 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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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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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 / 白金触媒 / 電力変換効率 / 電解液 / 変換効率 |
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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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