多功能合一的含稀土铽高聚物的性质表征

Properties of Multi- functional Polymers Containing Terbium Complex

制备了一种新型的含稀土铽高聚物光电材料,结合元素分析和X射线光电子能谱(XPS)对材料的组成进行分析并确认它的结构.荧光光谱表明含稀土铽高聚物是一类发纯绿光的发光材料.用循环伏安法研究它的电化学行为,测定材料的HOMO和LUMO能级.研究结果表明,这种材料同时具有空穴与电子传输功能,其HOMO和LUMO能级可与电致发光器件的工作电极相匹配.

A kind of multi-functional polymer P1 containing terbium complex was synthesized by free radical polymerization. The chemical composition was analyzed by elemental analysis and XPS, and the structure was confirmed. The fluorescence property was investigated in solid state. The result indicated that the dominant emission was from 5^D4→7^F5 of the terbium complex at about 543 nm and with a bandwidth of less than 10 nm, a pure green light. The electrochemical property was studied, and the HOMO and LUMO energy levels were obtained by cyclic voltammetry（CV） methods. The CV result indicated that the HOMO and LUMO energy levels of P1 matched well the respective work function of ITO （-4.80 eV） and Ca （-2.89 eV）. The CV result also revealed that the polymer P1 had the ability to balance the hole transport and electron transport.