摘要
合成了三-(1,10-邻菲啰啉)钌发光配合物Ru(phen)3(PF6)2 (phen=1,10-邻菲啰啉),得到了其单晶结构.单晶结构分析结果表明, Ru(phen)3(PF6)2具有层状结构特征,阳离子[Ru(phen)3]2+和阴离子PF6-分 别构成了正电荷层和负电荷层,正、负电荷层交替排列形成了晶体结构.分别以 Ru(phen)3Cl2和Ru(phen)3(PF6)2制备了单层结构的电化学发光器件(LECs), 器件结构为[ITO/Ru(Ⅱ)-配合物(100 nm)/Al(200 nm)].结果显示:以 Ru(phen)3(PF6)2为发光层的器件显示的最高效率和亮度分别为0.24 cd/A和 1 829 cd/m2,而以Ru(phen)3Cl2为发光层的器件显示的最高效率和亮度分别为 0.18 cd/A和 350 cd/m2,表明Ru(phen)3(PF6)2比Ru(phen)3Cl2具有更优异的电 致发光性能.
Tris (phenanthroline) ruthenium ( Ⅱ ) complex Ru (phen)3 (PF6)2 was synthesized and characterized by X-ray single crystal diffraction. The X-ray diffraction studies revealed that the Ru(phen)3 (PF6)2 has layer structure feature. Cation([Ru(phen)3]^2+)layer and anion (PF6^-) layer arranged alternately resulting in the formation of crystal.Single layer, solid-state light-emitting electrochemical cells with structure of[ITO/Ru(Ⅱ)-complexes(100 nm)/Al (200 nm)] had been prepared based on Ru (phen)3 (PF6)2 and Ru(phen)3 Cl2. The device based on Ru(phen)3 (PF6)2 showed the maximum luminescence was 1 829 cd/m^2 and the maximum current efficiency was 0. 24 cd/A,and that based on Ru(phen)3Cl2 showed the 350 cd/m^2 maximum luminescence and the 0. 18cd/A maximum current efficiency. The results showed that the Ru(phen)3 (PF6)2 is superior to Ru(phen)3Cl2 in the electroluminescent devices.
出处
《分子科学学报》
CAS
CSCD
2005年第4期12-17,共6页
Journal of Molecular Science
基金
国家自然科学基金资助项目(50225313)国家重点基础研究发展计划资助项目(2002CB613401)
关键词
钌(Ⅱ)
层状结构
电化学发光器件
ruthenium ( Ⅱ ) ; layer structure
light-emitting electrochemical cells(LECs)