A novel fabrication of electrospun polyacrylonitrile/NaYF₄:Eu⁺³ light emitting nanofibers

Polyacrylonitrile/NaYF₄:Eu⁺³ nanophosphor composite nanofibers have been successfully prepared using the electrospinning technique. The electrospun nanofibers exhibited intense emission of gradient blue (X ₂ = 0.254, Y ₂ = 0.152 and X ₃ = 0.233, Y ₃ = 0.139) with different concentrations of nanophosphor under the excitation wavelength of 239 nm. The morphological and structural characterization of the nanofibers confirms the uniform dispersion of nanophosphor, while photoluminescence spectroscopy confirms tunability in luminescence properties.