Enhanced Luminescence of Terbium Complexes with 2,3-Pyrazinedicarboxylate by Y(III) Doping

Ai Ling Wang; Hai Xia Zhang; Kai Kong; Huan Huan Li; Hua Wang; Hai Bin Chu; Yong Liang Zhao

doi:10.4028/www.scientific.net/AMR.750-752.1007

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Enhanced Luminescence of Terbium Complexes with 2,3-Pyrazinedicarboxylate by Y(III) Doping

Abstract:

Ten kinds of terbium doped inert yttrium complexes with 2,3-pyrazinedicarboxylate (2,3-pzdc^2-) have been synthesized. Characterization results indicate that the complexes have the compositions of Tb (pzdc)_1.55H₂O and Tb_xY_y(pzdc)_1.55H₂O (x:y=0.10:0.90; 0.20:0.80; 0.30:0.70; 0.40:0.60; 0.60:0.40; 0.70:0.30; 0.80:0.20; 0.90:0.10). IR spectra show that the lanthanide ions coordinate with the carboxylic oxygen atoms and nitrogen atoms of the ligands. Luminescence spectra show that the Y(III) ions can remarkably increase the luminescent intensities of terbium complexes. And Tb_0.7Y_0.3(pzdc)_1.55H₂O exhibits the strongest luminescent emission. Furthermore, the doped lanthanide complexes show longer luminescence lifetimes and higher quantum yields. The enhanced luminescence efficiencies of Tb³⁺ ions in the doped complexes may result from intramolecular energy transfer as well as the decrease of the self-quench of the Tb³⁺ ions induced by the doped Y(III) ions.

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Advanced Materials Research (Volumes 750-752)

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1007-1010

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https://doi.org/10.4028/www.scientific.net/AMR.750-752.1007

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August 2013

Authors:

Ai Ling Wang, Hai Xia Zhang, Kai Kong, Huan Huan Li, Hua Wang, Hai Bin Chu, Yong Liang Zhao

Keywords:

2,3- Pyrazinedicarboxylate, Doping, Luminescence, Terbium Complex, Yttrium

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