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Luminescent electrospun composite nanofibers of [Eu(TFI)3(Phen)]·CHCl3/polyvinylpyrrolidone

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Abstract

The luminescent europium complex [Eu(TFI)3(Phen)]·CHCl3 (TFI = 2-(2,2,2-trifluoroethyl)-1-indone, Phen = 1,10-phenanthroline) was incorporated into poly(vinylpyrrolidone) (PVP) matrixes and electrospun into nanofibers. The effect of [Eu(TFI)3(Phen)]·CHCl3 on the morphology and luminescence of composite nanofibers has been studied. FT-IR and TGA analyses of the composite nanofibers have been conducted and discussed. Further, the Judd–Ofelt theory is employed to study the effect of the dispersion of [Eu(TFI)3(Phen)]·CHCl3 and the interactions between the [Eu(TFI)3(Phen)]·CHCl3 molecules and neighboring chain segments of PVP. The results suggest that PVP led to the increased polarization degree of Eu3+ ions and significantly enhanced the electronic dipole-allowed transitions of Eu3+ ions, resulting in the enhancement of luminescent efficiency.

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Acknowledgements

This study was financially supported by the National Natural Science Foundation of China (Nos. 21272061, 21072049, and 21072050), Heilongjiang Province (No. 2010td03), and Heilongjiang University (2010hdt d-08 and 2010hdtd-11).

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Authors and Affiliations

  1. Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, People’s Republic of China

    Ye Tao, Pengfei Yan, Cheng Wang & Guangming Li

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  1. Ye Tao
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  2. Pengfei Yan
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  3. Cheng Wang
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  4. Guangming Li
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Corresponding author

Correspondence to Guangming Li.

Electronic supplementary material

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10853_2013_7468_MOESM1_ESM.docx

FT-IR, UV–Vis absorption spectra and molecular structure of [Eu(TFI)3(Phen)]·CHCl3, Judd–Ofelt analysis of neat [Eu(TFI)3(Phen)]·CHCl3 complex and [Eu(TFI)3(Phen)]·CHCl3/PVP, fluorescence dynamics and discussion of the surrounding media on the radiative lifetime of Eu3+ ion, and the sensitization luminescence and quenching mechanism of the [Eu(TFI)3(Phen)]·CHCl3/PVP composite fibers are supplied in the Supporting Material . (DOCX 17300 kb)

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Tao, Y., Yan, P., Wang, C. et al. Luminescent electrospun composite nanofibers of [Eu(TFI)3(Phen)]·CHCl3/polyvinylpyrrolidone. J Mater Sci 48, 6682–6688 (2013). https://doi.org/10.1007/s10853-013-7468-5

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  • DOI: https://doi.org/10.1007/s10853-013-7468-5

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