论文部分内容阅读
在无水乙醇中,利用Eu3+和Y3+作为中心离子,α-噻吩甲酰三氟丙酮(TTA)和1,10-邻菲啰啉(phen)作为配体制备了一系列共发光稀土配合物Eu_xY_(1-x)(TTA)3phen,并对TTA和Eu_xY_(1-x)(TTA)3phen进行了红外表征。掺杂钇的铕配合物与没掺杂钇相比,荧光绝对量子产率和平均寿命都发生了很大变化,随着钇含量的增大,Eu_xY_(1-x)(TTA)3phen的荧光绝对量子产率先增大,然后减小,而平均寿命则以波动方式逐渐减小,说明钇的掺杂改变了Eu_xY_(1-x)(TTA)3phen的分子微观结构,从而改变了Eu_xY_(1-x)(TTA)3phen的能量传递方式。
In absolute ethanol, a series of Eu_xY_ (Eu_xY_3) complexes were prepared by using Eu3 + and Y3 + as central ions, α-thienyltrifluoroacetone (TTA) and 1,10- phenanthroline (phen) (1-x) (TTA) 3phen, and TTA and Eu_xY_ (1-x) (TTA) 3phen were characterized by IR. Compared with non-doped yttrium, the absolute quantum yield and average life expectancy of yttrium-doped europium complex have changed greatly. With the increase of yttrium content, the fluorescence of Eu_xY_ (1-x) (TTA) 3phen The absolute quantum yield firstly increases, then decreases, while the average lifetime decreases in a fluctuating manner, indicating that the doping of yttrium changes the molecular microstructure of Eu_xY_ (1-x) (TTA) 3phen, thus changing the Eu_xY_ (1 -x) (TTA) 3phen energy transfer method.