2004 Fiscal Year Final Research Report Summary
J-aggregation formation of dye ultra thin films and sophisticated nano febrication using applied voltage Langmuir-Blodgett method
| Project/Area Number |
14550291
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Chiba University |
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Principal Investigator |
KUSHIDA Masahito Chiba University, Faculty of engineering, Research associate, 工学部, 助手 (70177989)
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| Co-Investigator(Kenkyū-buntansha) |
SUGITA Kazuyuki Chiba University, Faculty of engineering, Professor, 工学部, 教授 (70009273)
SAITO Kyoichi Chiba University, Faculty of engineering, Professor, 工学部, 教授 (90158915)
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| Project Period (FY) |
2002 – 2004
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| Keywords | Langmuir-Blodgett films / Applied voltage LB method / Dye LB films / Nano technology / Nano fabrication / Molecular electronics / J-aggregation / Patterning |
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| Research Abstract |
1.2002,Fabrication of applied voltage LB trough
Applied voltage LB trough was fabricated. The distance between water surface and counter electrode was one to five mm, applied voltage was -2500 to +2500 V, the maximum electric field was 25 kV/cm. The action force to molecule in L film by the electric field was larger than that by surface tension, so the orientation of molecule in L film and LB films was able to be controlled.
2.2003,Applied voltage polarity and subphase condition
Optimization of the applied voltage polarity, L film leaving time after applied voltage and pH of subphase, the orientation of LB films and the ratio of transferred L film to LB films.
3.2004,Molecular orientation of L film and LB films
We clarified that the limiting molecular area in L film was controlled, when applied voltage between the water surface and the counter electrode after spread molecular on the water surface. We clarified that the layer-to-layer spacing in applied voltage LB films was shorter than that in non applied voltage LB films using X-ray diffraction. We clarified that the molecular density in applied voltage LB films decreased using ultraviolet visible absorption spectrum. We clarified that the selective molecules in the parallel of LB films were deposited, and the orientation of molecule was controlled.
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