1988 Fiscal Year Final Research Report Summary
Fabrication of Molecular Photodiodes
| Project/Area Number |
61470076
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
工業物理化学
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
FUJIHIRA Masamichi Department of Biomolecular Engineering, Tokyo Institute of Technology, 工学部, 教授 (40013536)
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| Co-Investigator(Kenkyū-buntansha) |
SAJI Tetsuo Department of Chemical Engineering, Tokyo Institute of Technology, 工学部, 助教授 (60142262)
OHTANI Hiroyuki Department of Biomolecular Engineering, Tokyo Institute of Technology, 工学部, 助教授 (80203826)
SUGA Kousaku Department of Biomolecular Engineering, Tokyo Institute of Technology, 工学部, 助手 (90016642)
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| Project Period (FY) |
1986 – 1988
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| Keywords | Molecular Photodiode / Langmuir-Blodgett Film (LB Film) / Monolayer Film / Photo-electric Conversion / Photoinduced Electron Transfer / Artificial Photosynthesis / Fluorescence Lifetime / レーザーホトリシス |
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| Research Abstract |
Purpose of the present research project is to fabricate molecular photodiodes whose charge separation mechanism is the same as those in primary processes in photosyntheses. The molecular photodiodes were fabricated by depositing complex langmuir-Blodgett (LB) films which consist of an electron acceptor (A), a sensitizer (S), and an electron donor (D) surfactant derivative, i.e. A/S/D or D/S/A. In these surfactant molecules, viologen, pyrene, and ferrocene moieties act as A, S, and D units, respectively. The photodiode function was also achieved by aligned amphipathic triads which contain three functional units in each molecule (A-S-D).
The following terms were studied through the present research project. 1. Fabrication of photodiodes of A/S/D and D/S/A types. 2. Fabrication of photodiodes of AAA/SSSS/DDD type. 3. Determination of photoinduced electron transfer rates in A/S and S/D LB films by ns laser photolysis. 4. Investigation of the energy-gap law for the photoinduced electron transfer. 5. Syntheses of linear and folded types of A-S-D triads molecules. 6. Fabrication of photodiodes with monolayer of the linear or folded types of A-S-D triad molecules. 7. Determination of photoinduced electron transfer rates in A-S or S-D monolayer by ns or ps laser photolysis. 8. Synthesis of A-S-D triads linkes by ritid spacers.
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