Journal of Materials Science

, Volume 35, Issue 17, pp 4325–4328

Preparation and luminescence properties of sol-gel hybrid materials incorporated with europium complexes

  • P. A. Tanner
  • Bing Yan
  • Hongjie Zhang
Article

DOI: 10.1023/A:1004892520502

Cite this article as:
Tanner, P.A., Yan, B. & Zhang, H. Journal of Materials Science (2000) 35: 4325. doi:10.1023/A:1004892520502

Abstract

Microporous silica gel has been prepared by the sol-gel method utilizing the hydrolysis and polycondensation of tetraethylorthosilicate (TEOS). The gel has been doped with the luminescent ternary europium complex Eu(TTA)3·phen: where HTTA = 1-(2-thenoyl)-3,3,3-trifluoracetone and phen = 1,10-phenanthroline. By contrast to the weak f-f electron absorption bands of Eu3+, the complex organic ligand exhibits intense near ultraviolet absorption. Energy transfer from the ligand to Eu3+ enables the production of efficient, sharp visible luminescence from this material. Utilizing the polymerization of methyl methacrylate or ethyl methacrylate, the inorganic/polymer hybrid materials containing Eu(TTA)3·phen have also been obtained. SEM micrographs show uniformly dispersed particles in the nanometre range. The characteristic luminescence spectral features of europium ions are present in the emission spectra of the hybrid material doped with Eu(TTA)3·phen.

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • P. A. Tanner
    • 1
  • Bing Yan
    • 2
  • Hongjie Zhang
    • 2
  1. 1.Department of Biology and ChemistryCity University of Hong KongKowloonHong Kong SAR
  2. 2.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunPeople's Republic of China