2013 Fiscal Year Final Research Report
Studies toward efficient dye-sensitized solar cells using natural pigment
| Project/Area Number |
24651091
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Nagoya University |
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Principal Investigator |
YOSHIDA Kumi 名古屋大学, 情報科学研究科, 教授 (90210690)
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| Co-Investigator(Renkei-kenkyūsha) |
UCHIDA Satoshi 東京大学, 先端科学技術研究センター, 准教授 (60232849)
IUCHI Satoru 名古屋大学, 情報科学研究科, 助教 (50535060)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 色素増感太陽電池 / アントシアニン / 会合型色素 / 超分子金属錯体色素 / メチル化ケルセチン / メチル化シアニジン |
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| Research Abstract |
Anthocyanins are natural plant pigments showing wide range of colors from red through purple to blue. Because of the unique characters and high molar absorptivity, anthocyanins are expected as coloring materials of the dye-sensitized solar cells (DSC). However, the DSC studies of anthocyanins are limited due to the difficulties of purification. In this research, various natural and synthetic anthocyanins and flavonols were prepared and the photoelectric conversion-efficiency was measured. TiO2 electrode was immersed into the solution of the pigments in water or methanol, then the electrode was composed according to the previous reported general procedure. The power conversion efficiency (AM 1.5, 100 mWcm-2) of the pigments were 0.2%-0.6%. Estimated HOMO-LUMO energy level of the pigments indicated the reason of low electro-conversion yields. Form the results we could obtained the strategy of molecular design to increase photoelectric conversion-efficiency.
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[Journal Article] Tonoplast- and Plasma Membrane-localized Aquaporin-family Transporters in Blue Hydrangea Sepals of Aluminum Hyperaccumulating plant2012
Author(s)
Negishi, T., Oshima, K., Hattori, M., Kanai, M., Mano, Shoji, Nishimura, M., Yoshida, K.
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Journal Title
PLOS ONE
Volume: 7
Pages: e43189
Peer Reviewed
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[Presentation] Synthesis of 3-O-mechilflavones and anthocyanidins, their application for dye-sensitized solar cells2014
Author(s)
Kimura, Y., Oyama, K-I., Kondo, T., Uchida, S., Wakamiya, A., Yoshida, K.
Organizer
Institute for Chemical Research International Symposium 2014 - The Science and Technology of Smart Materials -
Place of Presentation
Kyoto, Japan
Year and Date
20140310-12
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[Presentation] Metalloanthocyanin, a Self-assembled Supramolecular Metal-complex Pigment Found in Blue Flower Petals2014
Author(s)
Yoshida, K., Toujo, K., Mori, M., Oyama, K-I. Kondo, T.
Organizer
Institute for Chemical Research International Symposium 2014 - The Science and Technology of Smart Materials -
Place of Presentation
Kyoto, Japan
Year and Date
20140310-12
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[Presentation] Chemical structure of blue pigment occuring petals of Nemophila menziesii2013
Author(s)
Toujou, K., Kitahara, S., Yamashita, K., Mori, M., Kondo, T., Yoshida, K.
Organizer
7^<th> International Workshop on Anthocyanins
Place of Presentation
Porto, Portugal
Year and Date
20130909-11
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[Book] Chemistry of Flavonoids in Color Development,In Recent Advances in Polyphenol Research, Volume 3. (Cheynier, V., Sarni-Manchado, P. and Quideau, S. eds.)2012
Author(s)
Yoshida, K., Oyama, K.and Kondo, T.
Total Pages
99-129
Publisher
Wiley-Blackwell Publishing, Chichester
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