2002 Fiscal Year Final Research Report Summary
Nanohybrid for Emission Constructed with Nanozone and Molecules
| Project/Area Number |
12450345
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
工業物理化学
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| Research Institution | Osaka University |
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Principal Investigator |
WADA Yuji Osaka University, Associate Professor, 大学院・工学研究科, 助教授 (40182985)
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| Co-Investigator(Kenkyū-buntansha) |
YANAGIDA Shozo Osaka University, Professor, 大学院・工学研究科, 教授 (10029126)
KITAMURA Takayuki Osaka University, Assistant Professor, 大学院・工学研究科, 助手 (40294037)
HASEGAWA Yasuchika Osaka University, assistant Professor, 大学院・工学研究科, 助手 (80324797)
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| Project Period (FY) |
2000 – 2002
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| Keywords | Nanozeolite / Photosensitization / Nanohybrid |
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| Research Abstract |
Absorption of Nd(III) is weak due to forbidden f-f transition. We have employed 8-quinolinol with strong absorption as a photosensitizer and succeeded in photoluminescence in near-infrared region through energy transfer from the excited state to Nd(III) encapsulated in a zeolite cavity. Nd(III) was ligated by bis-perfluoromethylsulfoarride for providing a low-vibration condition. 8-Quinolinol was introduced into the zeolite cavity, resulting in photosensitized emission of Nd(III).
Ruthenium tris-bipyridyl complex formed in the zeolite cavity was successfully employed as a photosensitizer for near infared emission of Nd(III) in the Zeolite cavity. This complex shows high efficiency in intersystem crossing, giving excited triplet state. The emission from MLCT triplet state of the complex was effectively quenched when Nd(III) was introduced into the zeolite cavity together, indicating that the efficient energy transfer occurs.
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[Journal Article] Spectroscopic Study on Strongly Luminescent Nd(III) Exchanged Zeolite : TMA^+-containing FAU type Zeolite as a Suitable Host for Ship-in-bottle Symthesis2002
Author(s)
Ryo, M., Wada, Y., Okubo, T., Nakazawa, T., Hasegawa, Y., Yanagida, S.
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Journal Title
J.Mater.Chem 12
Pages: 1748-1753
Description
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