Fluorescence properties and application of doping complexes Eu_l-xL_x(TTA)₃ Phen as light conversion agents

来源期刊：中南大学学报(英文版)2003年第4期

论文作者：王正祥 舒万艮 周忠诚 刘又年 陈洪

文章页码：342 - 346

Key words：light conversion agent; rare complex; doping element; fluorescence

Abstract: Light conversion agents Eul-xLx(TTA)3Phen (L denotes La³⁺, Gd³⁺, Y³⁺) complexes were prepared, and the influence of doping ions on fluorescence properties was investigated by elementary analysis, FTIR and fluorescent spectra. The results show that FTIR spectra of Eu_l-xL_x(TTA)₃Phen complex system are identical with that of EuTTA3Phen, which indicates that the complexes Eu_l-xL_x(TTA)₃Phen are similar in structure to Eu (TTA)₃Phen.For the above doping elements, co-fluorescence enhancement has the following order: Gd³⁺>Y³⁺>La³⁺, and the optimum mole fractions of doping elements are 0.4, 0.2 and 0.5 respectively for Gd³⁺, Y³⁺, La³⁺. Among all the complexes, Eu_0.6Gd_0.4(TTA)₃Phen complex has the strongest fluorescent intensity. Applying Eu_0.6Gd_0.4(TTA)₃Phen complex to plastic and printing inks, bright red fluorescence plastic and printing inks are obtained when the content of europium reaches 0.1%(mass fraction).