Issue 8, 2013

Luminescence studies of electrospun core–sheath fibers with the core component being a rubber nanocomposite containing a Eu(iii) complex

Abstract

Core–sheath fibers with the core component being a luminescent nanocomposite and the sheath component being poly(vinyl pyrrolidone) were prepared via the method of co-axial electrospinning; the luminescent nanocomposite consisted of a silicone rubber matrix with the complex Eu(TTA)3phen (TTA: 2-thenoyltrifluoroacetone, phen: 1,10-phenanthroline) as the filler. The fluorescence spectra, fluorescence lifetimes, and Judd–Ofelt parameters of the prepared core–sheath fibers were investigated. The results indicated that the Eu(TTA)3phen complex was uniformly dispersed in the silicone rubber as molecular clusters and/or nanoparticles, leading to a high luminescence intensity and efficiency. Additionally, unlike the neat Eu(TTA)3phen complex and electrospun fibers of thermoplastic-based nanocomposites that had no appreciable difference in the fluorescence lifetime and luminescent quantum efficiency at 73 and 293 K, the prepared electrospun core–sheath fibers had a longer fluorescence lifetime and a higher luminescence quantum efficiency at 73 K due to the contribution of the silicone rubber matrix.

Graphical abstract: Luminescence studies of electrospun core–sheath fibers with the core component being a rubber nanocomposite containing a Eu(iii) complex

Article information

Article type
Paper
Submitted
11 Sep 2012
Accepted
03 Jan 2013
First published
07 Jan 2013

J. Mater. Chem. C, 2013,1, 1613-1617

Luminescence studies of electrospun core–sheath fibers with the core component being a rubber nanocomposite containing a Eu(III) complex

S. Wen, X. Zhang, L. Yao, M. Xi, L. Zhang, H. Fong and L. Liu, J. Mater. Chem. C, 2013, 1, 1613 DOI: 10.1039/C2TC00168C

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