【摘 要】
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8-Hydroxyquinoline metal chelates are one of the most reliable electro-transporting and emitting materials,which are applied in molecular-based OLEDs for their
【机 构】
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SchoolofChemicalEngineeringandLightIndustry,GuangdongUniversityofTechnology,Guangzhou510006,China
【出 处】
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第五届岭南有机化学论坛暨华南理工大学-兰州大学有机化学双边论坛
论文部分内容阅读
8-Hydroxyquinoline metal chelates are one of the most reliable electro-transporting and emitting materials,which are applied in molecular-based OLEDs for their thermal stability,high fluorescence,and excellent electron-transporting mobility.Since Tang and Vanslyke used tris-(8-hydroxyquinoline) aluminum(Alq3) as the emitting and electron-transporting material for the fabrication of organic light-emitting diodes(OLEDs),HQ-based ligands have been further employed for potential applications in optical devices.In many cases,research suggests that the zinc analog of light-emitting materials AlQ3,zinc bis(8-hydroxyquinoline)(ZnQ2) has a better injection ef efficiency,a lower operating voltage,and higher quantum yields than the commonly used AlQ3.Inspired by these results,in order to retain the excellent photoelectron properties of 8-hydroxyquinoline itself,a feasible approach is to modify the 2-,5-or 7-position of the 8-hydroxyquinoline rings with different functional groups.Herein,we designed and synthesised novel Zn(Ⅱ)/Co(Ⅱ) complexes based on two 2-substituted-8-hydroxyquinoline ligands.In addition,we also studied the thermal stability,magnetic properties and fluorescent properties of the complexes in the solid state.
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