Photoluminescence Properties of Eu(TTA)3Phen/PS-PMMA Polymer Blend Electrospun Nanofibers

Manjusha Dandekar; Sangeeta Itankar; S. B. Kondawar

doi:10.61343/jcm.v3i01.131

Authors

Manjusha Dandekar Department of Physics, G. H. Raisoni Skill Tech University, Nagpur - 440033, India
Sangeeta Itankar Department of Physics, Suryodaya College of Engineering and Technology, Nagpur 440016, India
S. B. Kondawar Department of Physics, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur - 440033, India

DOI:

https://doi.org/10.61343/jcm.v3i01.131

Keywords:

E-Textile Electrospinning method, Europium nanofibers, Photoluminescence

Abstract

Because of their 4f electrons, europium metal ions have incredibly crisp emission bands. As the overlaying 5s² and 5p⁶ orbitals effectively protect 4f orbitals from the effects of external pressures. Complex forms of europium metal ions, such Eu(TTA)₃Phen, have garnered a lot of concentration for of their high fluorescence emission efficiency, which is caused by the ligands' high absorption coefficient. The Europium complex Eu(TTA)₃Phen doped PS-PMMA polymer mix, Eu (TTA)₃Phen/PS, and Eu (TTA)₃Phen/PMMA have been synthesized and reported here. The SEM picture, XRD and PL characterizations, and CIE chromaticity were used to characterize the synthesized nanofibers made using the electrospinning technology. The f–f electron transition of Eu³⁺ ions and the antenna effect of ligands provide this Europium β-diketon complex exceptional optical and luminous characteristics. Due to the extreme hypersensitive behaviour of the ⁵D₀→⁷F₂ transition, the photoluminescence emission spectrum of nanofibers exhibits very high intense red emission. Because Eu3+ ions separate in the polymer chain of molecules, there will be more contact between the polymer and Europium complexes, which explains why polymers, polystyrene (PS), and polymethyl methacrylate (PMMA) have good optical properties. This was made possible by the polymer nanofibers' even distribution of Eu³⁺. This is because the presence of polymer may cause the site symmetry of the Eu³⁺ ion to decrease, and the surrounding polymer media may distort it. This study demonstrates the possible use of electrospinning in a variety of polymer optoelectronic devices and emphasises its promising uses in the creation of protective textiles. Because electrospun nanofibers are strong, flexible, and have exceptional photoluminescence qualities, they are used in the newest technology for smart textiles to create smart fabrics for a variety of applications. These textiles provide as protection against a wide range of environmental threats.

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