Abstract:

In order to solve single-light color for the rare-earth strontium aluminate luminescent fiber, the blue-light luminesent fiber doped with organic onium salt was prepared by combining photo-initiating material triaryl sulfonium hexafluoroantimonate (THFS) and rare earth-activated alkaline earth strontium aluminate luminescent materials by microwave calcination, and melt blend spinning using PP as matrix. Moreover, the influence of the ratio of the raw materials, melting temperature, excitation conditions and other factors on the spectral performance of the fiber was investigated. The results show that when the content of THFS reaches 0.5%, the emission spectrum moves toward the shortwave and the spectrum shifts blue. The change of the luminescent material has no effect on the emission peak of the luminescent fiber, and the effect of light blue shift is not obvious. As the excitation wavelength is weakened, the emission wavelength of the luminescent fiber moves toward the short wavelength, and its emission peak produces blue shift.

Key words: luminescent fiber, triarylsulfonium bexafluoroantimonate, rare-earth strontium aluminate luminescent material, emission spectrum, blue shift