1. Efficient energy transfer from polysilane molecules and its application to electroluminescence
- Author
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Kamata, Norihiko, Terunuma, Daiyo, Ishii, Reiji, Satoh, Hiroki, Aihara, Satoshi, Yaoita, Yoshiyuki, and Tonsyo, Shinji
- Subjects
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SILANE compounds , *ENERGY transfer , *GLASS , *PHOTOCHEMISTRY - Abstract
Since the first observation of an efficient resonant energy transfer between polydihexylsilane and polydiphenylsilane, we have studied the energy transfer and radiative properties of polysilanes and their energy-matched counterparts. The synthesis of soluble polysilanes enabled us to prepare such pairs in a thin film simply by a spin-coating technique. The intermolecular energy transfer from conductive poly(m-hexoxyphenyl)phenylsilane was utilized for electroluminescence (EL) of perylene (blue), coumarin 6 (green), 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran and Zinc tetra-phenylporphyrin (red). A white EL was also observed by mixing four dye molecules. Photo-oxidation during irradiating an ultraviolet light was suppressed by synthesizing water-soluble polysilanes and embedding it inside sol–gel glass matrices. These results imply that polysilanes have a possibility to open new fields of optical applications. [Copyright &y& Elsevier]
- Published
- 2003
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