Sensitizers Immobilized on Semiconducting Electrodes for Light Energy Conversion
Project/Area Number |
18H03898
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Medium-sized Section 32:Physical chemistry, functional solid state chemistry, and related fields
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Research Institution | Kyoto University |
Principal Investigator |
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Project Period (FY) |
2018-04-01 – 2021-03-31
|
Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥44,070,000 (Direct Cost: ¥33,900,000、Indirect Cost: ¥10,170,000)
Fiscal Year 2020: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2019: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2018: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
|
Keywords | 人工光合成 / 色素増感太陽電池 / ポルフィリン / 有機太陽電池 / 水酸化触媒 / 半導体電極 / 銅錯体 / 太陽エネルギー変換 / 増感剤 / 増感色素 |
Outline of Final Research Achievements |
Artificial photosynthesis is a research field focusing on material conversion by visible light, but the performance is still poor. In this project we aimed to mimic photosynthetic processes artificially and elucidate the underlying mechanism toward efficient energy conversion. We developed photoelectrochemical cells with a semiconducting electrode modified with water oxidation catalysts and molecular sensitizers with visible light-harvesting and high oxidation ability. A remarkably high power conversion efficiency was also achieved by dye-sensitized solar cells with push-pull type fused porphyrins.
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Academic Significance and Societal Importance of the Research Achievements |
色素増感太陽電池においては、新規な分子設計で光増感色素を合成し、現在知られている最も性能の高い色素を上回る太陽電池性能を達成できたことは大きな進展である。また、人工光合成に関しては、可視光水分解の機構解明に取り組むための評価系構築原理を明らかにできた。以上の研究成果は、今後の高効率太陽エネルギー変換に向けて重要な基礎的知見となりうる。
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Report
(4 results)
Research Products
(56 results)
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[Journal Article] Efficient Light-Harvesting, Energy Migration, and Charge Transfer by Nanographene-Based Nonfullerene Acceptor Small-Molecule Exhibiting Unusually Long Excited-State Lifetime in Film State2020
Author(s)
T. Umeyama, K. Igarashi, D. Sasada, Y. Tamai, K. Ishida, T. Koganezawa, S. Ohtani, K. Tanaka, H. Ohkita, and H. Imahori
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Journal Title
Chem. Sci.
Volume: 11
Issue: 12
Pages: 3250-3257
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Exclusive Occurrence of Photoinduced Energy Transfer and Switching Its Direction by Rectangular π-Extension of Nanographenes2019
Author(s)
T. Umeyama, T. Hanaoka, H. Yamada, Y. Namura, S. Mizuno, T. Ohara, J. Baek, J. Park, Y. Takano, K. Stranius, N. V. Tkachenko, and H. Imahori
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Journal Title
Chem. Sci.
Volume: 10
Issue: 27
Pages: 6642-6650
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Photoconductivity in Metal-Organic Framework (MOF) Thin Films2019
Author(s)
X. Liu, M. Kozlowska, T. Okkali, D. Wagner, T. Higashino, G. Brenner-Weis, S. Marschner, Z. Fu, Q. Zhang, H. Imahori, S. Brase, W. Wenzel, C. Woll, and L. Heinke
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Journal Title
Angew. Chem. Int. Ed.
Volume: 58
Issue: 28
Pages: 9590-9595
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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