Studies on photoluminescent properties of Eu(III) ions in composite europium complex/polymer systems

被引：12

作者：

Liu, HG ^{[1
]}

Lee, YI

Feng, XS

Xiao, F

Zhang, L

Chen, X

Jang, KW

Seo, HJ

机构：

[1] Shandong Univ, Key Lab Colloid & Interface Chem Educ Minist, Jinan 250100, Peoples R China

[2] Changwon Natl Univ, Dept Chem, Chang Won 641773, South Korea

[3] Changwon Natl Univ, Dept Phys, Chang Won 641773, South Korea

[4] Pukyoung Natl Univ, Dept Phys, Pusan 608737, South Korea

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2005年 / 257-58卷

关键词：

europium; luminescence; composites; PMMA; PVP;

D O I：

10.1016/j.colsurfa.2004.10.039

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：

Europium complex Eu(DB-bpy)phenCl(3)(H2O)(2) (phen: 1,10-phenatithroline, DB-bpy: 4,4'-di-tert-butyl-2,2'-dipyridyl) was doped in poly(methylmethacrylate) (PMMA) and poly(vinyl pyrrolidone) (PVP). The composite systems with various molar ratios of C=O groups/Eu3+ ions were characterized by photoluminescent (PL) spectroscopy, X-ray diffractometry (XRD) and luminescent lifetime measurements. It was found that Eu3+ ions have more than one kind of symmetrical sites in Eu/PMMA composites and the PL spectra of Eu(III) change with the compositions. However. the composites of Eu/PVP with different molar ratios show similar PL spectra, indicating different influence of matrices on luminescent properties. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：301 / 305

页数：5

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