Luminescent polymer containing the Eu(III) complex having fast radiation rate and high emission quantum efficiency

被引：287

作者：

Hasegawa, Y ^{[1
]}

Yamamuro, M ^{[1
]}

Wada, Y ^{[1
]}

Kanehisa, N ^{[1
]}

Kai, Y ^{[1
]}

Yanagida, S ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Chem Mat, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2003年 / 107卷 / 11期

关键词：

D O I：

10.1021/jp022397u

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Radiation rates and emission quantum yields of Eu(III) were modified using asymmetric deuterated Eu(Ill) complexes doped in poly(methyl methacrylate) (PMMA) deuterated tris-(hexafluoroacetylacetonato)europium-(III) with phospine oxide in order to produce lowthreshold levels for laser transmission and amplifier emissions. Geometric structures of asymmetric Eu(III) complexes were determined by single-crystal X-ray diffraction and Judd-Ofelt analysis. Luminescent polymers were fabricated by incorporating Eu(Ill) complexes in a PMMA matrix. Luminescent PMMA containing Eu(hfa-D)(3)(DPFBPO)(2) exhibited the highest quantum yield and fastest radiation rate (quantum yield = 78 +/- 6%, radiation rate =1.2 x 10(3) s(-1)) of the PMMA matrixes. Emission quantum yields of Eu(hfa-D)(3) (TPPO)(2) in acetone-d(6) were found to be >95%. This radiation rate is of the same order as values reported for Nd:YAG. Prepared luminescent polymers including Eu(hfa-D)(3)-(TPPO-F)(2) showed promising results for applications to novel organic Eu(III) devices, such as organic liquid lasers, plastic lasers, and optical fibers.

引用

页码：1697 / 1702

页数：6

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