Photosensitized Near-Infrared Luminescence of Yb(III) Complexes Containing Phenanthroline Derivatives
スポンサーリンク
概要
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Near-IR emission of novel Yb(III) complexes with phenanthroline derivertives, bis(phenanthroline)-tris(bis-perfluoromethanesurfonyliminate)ytterbium [Yb(pms)3(phen)2] and dipyridophenazine-tris(bis-perfluoromethanesurfonyliminate)ytterbium [Yb(pms)3(dip)] are studied in dimethylsulfoxide [DMSO-$d_{6}$]. The emission quantum yields of Yb(pms)3(phen)2 and Yb(pms)3(dipy-phenazine) excited at 940 nm (2F7/2–2F5/2 transition) were found to be 7.4 and 9.1%, respectively. We successfully observed the photosensitized near-infrared emission from the Yb(III) complexes upon excitation of the aromatic ligands. The energy transfer efficiencies of Yb(pms)3(phen)2 and Yb(pms)3(dip) excited at 310 nm ($\pi$–$\pi^{*}$ transition) were evaluated to be 9.1 and 4.0%, respectively.
- 2008-02-25
著者
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Kawai Tsuyoshi
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Hasegawa Yasuchika
Graduate School Of Engineering Hokkaido University
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Yasuda Takuma
Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
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Nakamura Kazuki
Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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