Issue 3, 2003
From the journal:

Journal of Materials Chemistry

Highly ordered photoluminescent self-assembled films based on polyoxotungstoeuropate complex Na9[EuW10O36]†

Tie Rui Zhang,a   Ran Lu,*a   Hong Yu Zhang,b   Peng Chong Xue,a   Wei Feng,a   Xin Li Liu,a   Bing Zhao,b   Ying Ying Zhao,a   Tie Jin Lia  and  Jian Nian Yaoc  

* Corresponding authors

a Department of Chemistry, Jilin University, Changchun 130023, P. R. China
E-mail: luran@mail.jlu.edu.cn
Fax: +86-431-8923907

b Key Laboratory for Supramolecular Structure and Materials, Jilin University, Changchun 130023, P. R. China

c Institute of Chemistry and Center for Molecular Science, Chinese Academy of Sciences, Beijing 100080, P. R. China

Abstract

A novel highly ordered layered superlattice multibilayer film is prepared by casting the chloroform solutions of ionic complex between a polyoxotungstoeuropate anion EuW10O369− (EuW10) and a hexadecyltrimethylammonium cation (C16TA) on hydrophilic substrates. A variety of techniques, including FT-IR and UV–vis spectroscopies, differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) have been used to characterize the structure of the composite film. The lamellae consist of alternating layers of polyoxotungstoeuropate and bimolecular layers of surfactant, with the surfactant alkyl chains tilted 30.8° to the lamellar surface and noninterdigititated. The photoluminescent behavior of the film at room temperature has also been investigated by fluorescence spectroscopy to show the characteristic Eu3+ emission pattern of 5D0 → 7Fj. The fluorescence spectra and fluorescence lifetime of the composite film are quite different from those found for EuW10 solid powder and EuW10 dilute aqueous solution.

Graphical abstract: Highly ordered photoluminescent self-assembled films based on polyoxotungstoeuropate complex Na9[EuW10O36]

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Article information

DOI
https://doi.org/10.1039/B210965D
Article type
Paper
Submitted
07 Nov 2002
Accepted
06 Jan 2003
First published
28 Jan 2003

J. Mater. Chem., 2003,13, 580-584

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Highly ordered photoluminescent self-assembled films based on polyoxotungstoeuropate complex Na9[EuW10O36]

T. R. Zhang, R. Lu, H. Yu Zhang, P. C. Xue, W. Feng, X. L. Liu, B. Zhao, Y. Y. Zhao, T. J. Li and J. N. Yao, J. Mater. Chem., 2003, 13, 580 DOI: 10.1039/B210965D

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