2006 Fiscal Year Final Research Report Summary
Development of nano-porous photo-catalysis with opal and inverse opal structure
| Project/Area Number |
14050104
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Kyushu University (2005-2006)
Kanagawa Academy of Science and Technology (2002-2004) |
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Principal Investigator |
SATO Osamu Kyushu University, Institute for Materials Chemistry and Engineering, Professor (80270693)
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| Project Period (FY) |
2001 – 2006
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| Keywords | Photonic Crystal / Liquid Crystal / Azobenzene / Stop Band / Switching / Photo-isomerization |
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| Research Abstract |
Recently, photonic crystals (PCs) composed of spatially ordered dielectrics with lattice parameters comparable to the wavelength of visible light have received much attention due to their unique properties in controlling the propagation of light. Even those crystals that do not exhibit a complete photonic band gap can still show interesting optical properties, such as an optical stop band that can also be observed as a structural color. It is important to be able to control the photonic band structure through external stimuli for many practical applications. Along this line we prepared tunable photonic band gap crystals by infiltrating photoresponsive liquid crystals into inverse opal structure films. The tuning of their optical properties could be realized by means of photoinduced phase transition of liquid crystals. The photoinduced phase transition behavior could be evaluated by measuring the change in their optical properties under light irradiation, and it was clearly observed that the behavior varied with temperature and light intensity. The materials could store and display images that were created by the irradiation with LTV light through a photomask. A great advantage of this technique is that the films themselves can display an image without the use of polarizers or other assistant materials, and they can also render a color display that can be selected by varying the lattice distance of the inverse opal structure. In addition, we achieved the control of their optical properties by the application of an electric field. Because the state induced by the electric field is different from that engendered by a photoinduced phase transition, it is now possible to switch among three states by a combination of these two techniques. The materials that we have developed have possibilities for practical applications in optical devices.
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Research Products
(32 results)
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[Journal Article] Coexistence of Magnetization Relaxation and Dielectric Relaxation in a Single-Chain Magnet2006
Author(s)
Bai, Y. L., Tao, J., Wernsdorfer, W, Sato, O. Huang, R. B., Zheng, L. S.
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Journal Title
J. Am. Chem. Soc. 128
Pages: 16428-16429
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] [Mn^<III>(salen)]_6[Fe^<III>(bpmb)(CN)_2]_6・7H_2O : a Unique Cyanide-Bridged Nanosized Molecular Wheel.2005
Author(s)
Ni, Z. -H., Kou, H, -Z., Zhang, L. -F. Ge, C, Cui, A-L. Wang, R.-J. Li, Y.-D. Sato, O.
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Journal Title
Angew. Chem、Int. Ed、 44
Pages: 7742-7745
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] O. [Mn^<III>(salen)]_6[Fe^<III>(bpmb)(CN)_2]_67H_2O : a Unique Cyanide-Bridged Nanosized Molecular Wheel2005
Author(s)
Ni, Z. -H., Kou, H. -Z., Zhang, L. -F., Ge, C., Cui, A. -L., Wang, R. -J., Li, Y. -D., Sato.
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Journal Title
Angew. Chem. Int. Ed. Engl. 44
Pages: 7742-7745
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Tunable Photonic Band Gap Crystals based on a Liquid Crystal-Infiltrated Inverse Opal Structure2004
Author(s)
Kubo, S., Gu, Z. -Z. Takahashi, K., Fujishima, A., Segawa, H., Sato, O.
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Journal Title
J. Am. Chem. Soc. 126
Pages: 8314-8319
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] Structural Color and the Lotus Effect.2003
Author(s)
Gu, Z.-Z. Uetsuka, H., Takahashi, K., Nakajima, R., Onishi, H., Fujishima, A. Sato, O.
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Journal Title
Angew. Chem. Int. Ed. 42
Pages: 984-897
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] Fabrication of Efficient and Stable Solid State Dye-sensitized Solar Cell.2003
Author(s)
Meng, Q.-B. Takahashi, K., Zhang, X,-T., Stanto, I., Gu, Z.-Z., Fujishima, A., Sato, O.
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Journal Title
Langmuir 19
Pages: 3572-3574
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] Structural Color and the Lotus Effect.2003
Author(s)
Gu, Z. -Z. Uetsuka, H., Takahashi, K., Nakajima. R., Onishi, H., Fujishima. A., Sato, O
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Journal Title
Angew. Chem. Int. Ed. Engl. 42
Pages: 894-897
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Fabrication of Efficient and Stable Solid State Dye-sensitized Solar Cell.2003
Author(s)
Meng, Q. -B. Takahashi, K., Zhang, X. -T., Stanto, I., Gu, Z. -Z., Fujishima, A., Sato, O.
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Journal Title
Langmuir 19
Pages: 3572-3574
Description
「研究成果報告書概要(欧文)」より
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