Comparative photoluminescent study of PVDF/Eu3+ and PEO/Eu3+ electrospun nanofibers in photonic fabric

The photoluminnescent trivalent rare earth europium ion (Eu3+) is well incorporated with polymers like Poly (vinylidene fluoride) PVDF and Poly(ethylene oxide) PEO to fabricate the PVDF/Eu3+ and PEO/Eu3+ nanofibers by electrospinning technique. The fabricated nanofibers were characterized by scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDX), Fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD). Photoluminescence of PVDF/Eu3+ and PEO/Eu3+ nanofibers has been made based on the measurement of the emission spectra. The comparative study of photoluminescence properties of PVDF/Eu3+ and PEO/Eu3+ nanofibers shows that PVDF/Eu3+ nanofibers have good emission spectra due to 5D0 → 7F2 transition which is responsible for the typical red luminescence observed in europium (III) with high intensity ratio (5D0→ 7F2 / 5D0→ 7F1) than the PEO/Eu3+ nanofibers.This is because Eu3+ ions dispersed in the PVDF molecule chain and there could be some more interaction between the group of PVP polymer and Eu3+ ions. This result in uniform distribution of the Eu3+ in the PVDF nanofibers substantially enhanced the interactions between individual Eu3+ molecules and neighboring chain segments of PVDF. In PVDF/Eu3+ nanofibers the majority of the Eu3+ ions distributed in the PVDF nanofibers matrix as compared to PEO. Such types of nanofibers are found to be used in designing photoluminescent fabric and in textile industries.The photoluminnescent trivalent rare earth europium ion (Eu3+) is well incorporated with polymers like Poly (vinylidene fluoride) PVDF and Poly(ethylene oxide) PEO to fabricate the PVDF/Eu3+ and PEO/Eu3+ nanofibers by electrospinning technique. The fabricated nanofibers were characterized by scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDX), Fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD). Photoluminescence of PVDF/Eu3+ and PEO/Eu3+ nanofibers has been made based on the measurement of the emission spectra. The comparative study of photoluminescence properties of PVDF/Eu3+ and PEO/Eu3+ nanofibers shows that PVDF/Eu3+ nanofibers have good emission spectra due to 5D0 → 7F2 transition which is responsible for the typical red luminescence observed in europium (III) with high intensity ratio (5D0→ 7F2 / 5D0→ 7F1) than the PEO/Eu3+ nanofibers.This is because Eu3+ ions dispersed in the PVDF molecule chain and there could be some more interaction between th...

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