作　　者： ; ; ; ; ; ;

机构地区： 中山大学中山医学院

出　　处： 《发光学报》 2003年第5期481-484,共4页

摘　　要： 以氯化镁与8 羟基喹啉反应合成了8 羟基喹啉合镁配合物,用元素分析、热重分析和红外吸收光谱分析确定了其组成为Mg(C9H7NO)2·2H2O。结果表明,该配合物是热稳定性高、升华性好、光致发光性能优良的蓝绿色发光材料;以该配合物作为发光层和电子传输层,用真空镀膜法得到了结构为ITO/TPD/Mgq2/Al的明亮的蓝 绿色电致发光器件。 As a potential candidate for organic electroluminescent material, bi(8hydroxyquinolinolato)magnesium was synthesized by a reaction of magnesium chloride and 8hydroxyquinoline. The composition of the complex was confirmed to be Mg(C9H7NO)2·2H2O by elementary analysis, thermogravimetry analysis and IR spectroscopy. Ultraviolet absorption spectrum was obtained in alcohol solution. The maximum emission of the compound is at 472nm. The results showed that the complex has excellent photoluminescence property and can be applied as a greenblue emitting material. With the complex as an emitter and an electron transporting layer, bright bluegreen electroluminescence diodes were fabricated by conventional vacuumcoating method. The structure of the diodes was ITO/TPD/Mgq2/Al. The EL spectrum for device was observed and was very similar to the corresponding PL emission spectrum, clearly the magnesium chelate acted as the emitter in the device. Comparing to the PL spectrum, the maximum emission wavelength in EL emission spectrum shifts from 472nm to 528nm, indicating that the exciting transporters(electrons and holes) combine in a wider energy range. The JV curve implied that the device had the standard characteristic of diode communication. The LJ curve showed that the turnon voltage for the device was satisfied, the maximum luminance was 12 000cd·m-2 under 15V drive voltage.

关 键 词： 羟基喹啉合镁 发光层 电致发光器件 有机电致发光 组成分析 真空镀膜法 光谱红移 电子传输层

领　　域： [电子电信] [电子电信]