Photochromic behavior and luminescent properties of novel hybrid organic-inorganic film doped with Preyssler's heteropoly acid H12[EuP5W30O110] and polyvinylpyrrolidone

被引：45

作者：

Zhang, HY

Xu, L

Wang, EB ^{[1
]}

Jiang, M

Wu, AG

Li, Z

机构：

[1] NE Normal Univ, Dept Chem, Inst Polyoxometalate Chem, Changchun 130024, Peoples R China

[2] Acad Sinica, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 08期

基金：

中国国家自然科学基金;

关键词：

composite materials; nanocomposites; thin films; optical materials; optical properties;

D O I：

10.1016/S0167-577X(02)01000-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel hybrid photochromic composite film composed of Preyssler's heteropoly acid H-12[EuP5W30O110] (EuP5W30) and polyvinylpyrrolidone (PVP) was prepared by dip-coating method. Atomic force microscopy (AFM) was used to investigate the surface topography. The change of characteristic peak in the infrared spectra (IR) was investigated. The TG curve showed three steps of weight loss and approximately revealed the composition of the hybrid film. Ultraviolet-visible adsorption spectra (UV-VIS) and electron resonance spectrum (ESR) were used to investigate the photochromic behavior and mechanism of hybrid film. The photoluminescent behavior of the film at room temperature was investigated to show the characteristic Eu3+ emission pattern of D-5(o)-F-7(J). The occurrence of photoluminescent activity confirms the potential for creating luminescent thin film with polyoxometalates (POMs). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1417 / 1422

页数：6

共 26 条

[1] MAGNETIC-PROPERTIES OF MIXED-VALENCE HETEROPOLY BLUES - INTERACTIONS WITHIN COMPLEXES CONTAINING PARAMAGNETIC ATOMS IN VARIOUS SITES AS WELL AS BLUE ELECTRONS DELOCALIZED OVER POLYTUNGSTATE FRAMEWORKS [J].