化学学报 ›› 2004, Vol. 62 ›› Issue (22): 2282-2286. 上一篇    

研究论文

三种新的铕(Ⅲ)三元配合物的合成及发光性质研究

袁继兵1,2, 李嘉航1, 梁万里2, 苏树江3, 石建新1, 龚孟濂1,2   

  1. 1. 中山大学光电材料与技术国家重点实验室, 化学与化学工程学院, 广州, 510275;
    2. 香港浸会大学化学系, 香港;
    3. 香港浸会大学物理系, 香港
  • 收稿日期:2003-10-23 修回日期:2004-07-05 出版日期:2004-11-28 发布日期:2014-02-17
  • 通讯作者: 龚孟濂,E-mail:cesgml@zsu.edu.cn E-mail:cesgml@zsu.edu.cn
  • 基金资助:
    广东省科技计划(No.B10502)资助项目.

Synthesis and Photoluminescence of Three Novel Ternary Europium(Ⅲ) Complexes

YUAN Ji-Bing1,2, LI Jia-Hang1, LEUNG Louis-M.2, SO Shu-Kong3, SHI Jian-Xin1, GONG Meng-Lian1,2   

  1. 1. State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275;
    2. Department of Chemistry, Hong Kong Baptist University, Hong Kong;
    3.Department of Physics, Hong Kong Baptist University, Hong Kong
  • Received:2003-10-23 Revised:2004-07-05 Online:2004-11-28 Published:2014-02-17

合成了吡嗪[2,3-f] 并邻菲罗啉及其一系列衍生物,作为第二配体,并以二苯甲酰甲烷为第一配体,合成了3种新的铕(Ⅲ)三元配合物.通过元素分析、红外光谱、核磁共振光谱确定了它们的组成,研究了三种配合物的热稳定性、成膜性能和光致发光性能(发光强度、荧光量子效率和寿命),并初步从理论上探讨含有不同基团的第二配体的结构对铕(Ⅲ)配合物发光的影响,结果表明:这三种铕(Ⅲ)三元配合物均为优良的红色发光材料,而且在真空条件下均形成均衡的薄膜,这为以这三种铕(Ⅲ)配合物作为发光层材料制作有机电致发光器件提供了认识基础.

关键词: 铕, 红光, 第二配体, 量子效率, 寿命, 热稳定性

In this paper, three new organic ligands, pyrazino[2,3-f] [1,10] phenanthroline and its derivates, were designed and synthesized. With dibenzoylmethane as the first ligand and these synthesized ligands as the secondary ligand, three novel ternary europium(Ⅲ) complexes were synthesized. The composition of the complexes was confirmed by elemental analysis, IR and 1H NMR measurements. UV-vis absorption spectra, thermal analysis, photoluminescence spectra, quantum yield and life time of the complexes were studied. The effect of the secondary ligands with different structure on the photoluminescence of the europium complexes was investigated. The results showed that all the three europium complexes are excellent red-luminescence materials with good film-formation property under vacuum, which provides a base for fabrication of organic light-emitting devices (OLED) with these europium complexes as red light-emitting materials.

Key words: europium complex, red light, secondary ligand, quantum yield, life time, thermal stability