Issue 33, 2009
From the journal:

Dalton Transactions

A study on the near-infrared luminescent properties of xerogel materials doped with dysprosium complexes†

Jing Feng,ab   Liang Zhou,ab   Shu-Yan Song,ab   Zhe-Feng Li,a   Wei-Qiang Fan,ab   Li-Ning Sun,a   Ying-Ning Yua  and  Hong-Jie Zhang*a  

* Corresponding authors

a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, China
E-mail: hongjie@ciac.jl.cn
Fax: +86-431-85698041
Tel: +86-431-85262127

b Graduate School of the Chinese Academy of Sciences, Beijing, P. R. China

Abstract

A series of dysprosium complex doped xerogels with the same first ligand (acac = acetylacetone) and different neutral ligands were synthesized in situ via a sol–gel process. The Fourier transform infrared (FTIR) spectra, diffuse reflectance (DR) spectra, and near-infrared (NIR) luminescent properties of dysprosium complexes and dysprosium complex doped xerogels are described in detail. The results reveal that the dysprosium complex is successfully synthesized in situ in the corresponding xerogel. Excitation at the maximum absorption wavelength of the ligands resulted in the characteristic NIR luminescence of the Dy3+ ion, which contributes to the energy transfer from the ligands to the central Dy3+ ion in both the dysprosium complexes and xerogels via an antenna effect. The NIR luminescent properties of the dysprosium complexes and xerogels were compared, respectively. The evidence showed that the neutral ligand triphenyl phosphine oxide (TPPO) could increase the emission intensity of the dysprosium complex while 1,10-phenanthroline (phen) gave the negative effect. In addition, the coordinated water molecules affect the emission intensity of the dysprosium complex doped xerogel without the neutral ligand.

Graphical abstract: A study on the near-infrared luminescent properties of xerogel materials doped with dysprosium complexes

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Article information

DOI
https://doi.org/10.1039/B906419B
Article type
Paper
Submitted
01 Apr 2009
Accepted
29 May 2009
First published
30 Jun 2009

Dalton Trans., 2009, 6593-6598

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A study on the near-infrared luminescent properties of xerogel materials doped with dysprosium complexes

J. Feng, L. Zhou, S. Song, Z. Li, W. Fan, L. Sun, Y. Yu and H. Zhang, Dalton Trans., 2009, 6593 DOI: 10.1039/B906419B

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