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07-05-2021 | Composites & nanocomposites | Issue 23/2021

Journal of Materials Science 23/2021

Facile fabrication of luminescent rare-earth-doped PS/AA composites for anti-counterfeiting applications

Journal:
Journal of Materials Science > Issue 23/2021
Authors:
Qing Wang, Dong Xie, Junjia Chen, Guang Liu, Mingguang Yu
Important notes
Handling Editor: Yaroslava Yingling.

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Abstract

Herein, a facile method to develop luminescent PS/AA/Rare-Earth-doped composites was presented. The PS/AA microspheres were first carried out via one-pot dispersion polymerization. Then, the PS/AA microspheres bearing free carboxyl groups were used as templates for surface chemical deposition of rare earth ions forming lanthanide-based nanocrystal-doped PS/AA composites. The morphologies and structures of resulting composites were characterized by SEM, TEM, FT-IR, TGA, and XPS. The photoluminescence properties of the composite microspheres were also investigated. By adjusting the amount of AA, the fluorescence intensity could be well-controlled. After blending with PVA into ink, the obtained PS/AA/Rare-Earth-doped composites possessed good fluorescence stability. The facile synthesis method introduced here has the advantages of mass production of security ink with fluorescent stability for anti-counterfeiting purposes.

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