Photosensitized near-infrared luminescence of Yb(III) complexes containing phenanthroline derivatives

被引：6

作者：

Hasegawa, Yasuchika ^{[1
]}

Yasuda, Takuma ^{[1
]}

Nakamura, Kazuki ^{[2
]}

Kawai, Tsuyoshi ^{[1
]}

机构：

[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300192, Japan

[2] Osaka Univ, Div Adv Sci & Biotechnol, Grad Sch Engn, Osaka 5650871, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2008年 / 47卷 / 02期

关键词：

lanthanide; ytterbium; emission; luminescence; near-infrared region; quantum yield;

D O I：

10.1143/JJAP.47.1192

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 940nm ((2)F(7/2)-(2)F(5/2) 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.

引用

页码：1192 / 1195

页数：4

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