Control of the Polymer Conformation and the Photoelectric Conversion Characteristics at the Semiconducting Polymer/Nanoporous TiO_2 Surface
| Project/Area Number |
17550183
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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 |
Polymer/Textile materials
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| Research Institution | TOHOKU UNIVERSITY |
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Principal Investigator |
WATANABE Akira Tohoku University, Institute of Multidisciplinary Research for Advanced Materials, Associate Professor, 多元物質科学研究所, 助教授 (40182901)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2005: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | semiconducting polymer / nanoporous / titanium dioxide / nano-interface / ナノポーラス / 光電変換 |
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| Research Abstract |
The interaction between poly(n-di-hexylsilane) (PDHS) and TiO_2 nanoparticle was studied based on the temperature dependence of the fluorescence spectra from the PDHS and TiO_2 nanoparticle hybrid film. The polysilane was a suitable probe to investigate a guest polymer-host matrix interaction because the photophysical properties of polysilanes seriously depend on the conformation of the a-conjugated Si-Si chain. The PDHS/TiO_2 nanoparticle hybrid film shows a fluorescence band assigned to a disordered structure even at 80 K, where the PDHS film shows only the fluorescence band of an ordered structure. The disordering of the Si-Si main chain caused by the perturbation of the n-hexyl side chain in the neighborhood of the TiO_2 nanosurface was suggested. The non-radiative deactivation of the excited state via the disordered site was suggested by the temperature dependence of the fluorescence intensities of the disordered and ordered structures in the temperature region from 80 to 160 K.
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Report
(3 results)
Research Products
(5 results)
