A novel one-dimensional PLA/Sr2MgSi2O7:Eu2+, Dy3+ composite fibers composed of long-persistent luminescence
nanoparticles of Sr2MgSi2O7:Eu2+, Dy3+ and ploy lactic acid were successfully synthesized by
means of electrospinning. Phase, morphology and luminescence properties were examined. The composite
fibers contain 12.5 wt% of nanoparticles. It was found that the fibers (diameter 1.5 lm) with nanoparticles
(size 200 nm) have an emission band from 410 nm to 590 nm and a major emission peak at 468 nm.
It’s strongest excitation peak was at 360 nm. Similarly, it’s phosphorescent emission spectra have an
emission band from 410 nm to 590 nm and a major emission peak at 468 nm. Decay curves of the composite
fiber have a similar tendency with Sr2MgSi2O7:Eu2+, Dy3+ pure powder, but with lower intensity.
The fibers have the properties of both long-persistent luminescence nanoparticles and PLA of polymer
fibers, combining phosphorescence, fluorescence, plasticity, elasticity, self-degradation altogether. As
these characters of above, the fibers has applications possibility in textiles, optical detectors, and vivo
imaging.