Synthesis and Application of Europium-Doped Complexes in Fluorescence Falsification-Resistant Ink

Abstract:

Fluorescence falsification-resistant ink is one of the most widely used ink in packaging and printing industry. In this paper, europium complexes were synthesized by doping no-fluorescence inert ions Gd3+. IR spectra indicated that these complexes have similar structures, have bonded with the legends. The fluorescence properties indicated that the doping ions Gd3+ can enhance the fluorescence intensities, the best mole ratio of Gd3+ to Eu3+ is 1:9；At last, fluorescence falsification-resistant ink was prepared, the fluorescence ink showed the characteristic emission of Eu3+ , showed invisible in visible light and showed red fluorescence under ultraviolet light.

• Periodical: Advanced Materials Research (Volume 174)
• Pages: 437-440
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.174.437
• Online since: December 2010
• Authors: Jie Meng, Cheng Sun, Jian Qing Wang, Wen Shun Sun, Xiao Xiu Hao, Xin Ni Mu
• Keywords: Doped Complex Fluorescence Property, Fluorescence Falsification-Resistant Ink, Rare Earth Complex

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