Development of light energy conversion device with new charge separation and transportation mechanism
Project/Area Number |
26630497
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Energy engineering
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Research Institution | Kyushu University |
Principal Investigator |
Hagiwra Hidehisa 九州大学, 工学(系)研究科(研究院), 助教 (30574793)
|
Project Period (FY) |
2014-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | 光触媒 / 水の光分解 / 色素 / 水の光分解反応 / 色素修飾 / 電荷移動 / 光エネルギー変換 / ポルフィリン |
Outline of Final Research Achievements |
The photocatalytic water splitting activity of KTaO3 was improved by coating with 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-PEN). It was assumed that the charge transfer mechanism of TIPS-PEN/KTaO3 was two-step excitation process from the results of fluorescence spectroscopy and the wavelength dependency of the photocatalytic activity. Furthermore, the photocatalytic activity of the dye-modified KTaO3 depended on the LUMO energy level of acene dyes, and the dyes that have more positive LUMO energy level showed positive effect on the photocatalytic activity of KTaO3. These results suggest that the electron transfer from LUMO was important for the activity of the dye-modified KTaO3 photocatalysts for overall water splitting.
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Report
(3 results)
Research Products
(14 results)
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[Journal Article] Impact of Alkoxy Chain Length on Carbazole-based, Visible Light-driven, Dye Sensitized Photocatalytic Hydrogen Production2015
Author(s)
Motonori Watanabe, Hidehisa Hagiwara, Yudai Ogata, Aleksandar Staykov, Sean R. Bishop, Nicola H. Perry, Yuan Jay Chang, Shintaro Ida, Keiji Tanaka, Tatsumi Ishihara
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Journal Title
Journal of Materials Chemistry A
Volume: 3
Issue: 43
Pages: 21713-21721
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Spacer Effects in Metal-Free Organic Dyes for Visible-Light-Driven Dye-Sensitized Photocatalytic Hydrogen Production2014
Author(s)
Watanabe, M., Hagiwara, H., Iribe, A., Ogata, Y., Shiomi, K., Staykov, A., Ida, S., Tanaka, K., Ishihara, T.
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Journal Title
Journal of Materials Chemistry A
Volume: 2
Issue: 32
Pages: 12952-12961
DOI
Related Report
Peer Reviewed
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