基于OPV单元的电致发光材料的合成及性质研究

【作者】 侯军；

【导师】 吴学；

【作者基本信息】 延边大学 ， 有机化学， 2007， 硕士

【摘要】 有机电致发光因其在平板显示领域的广阔应用前景而成为重要的研究领域之一。对于有机电致发光器件在平板全彩显示的应用，实现其高亮度和纯色度红、绿、蓝三色显示都是很重要的。目前蓝光和绿光材料都已经进入了实用化阶段，然而红光材料的发光效率还有待进一步提高。齐聚苯乙烯撑(OPV)结构单元作为有机电致发光材料的发射部分，具有独特的光电化学性质。本文利用OPV单元的特点将其链接上其它功能基团，在保留OPV特点的同时得到红色发光材料。研究的内容主要包括以下部分：1、设计并合成了五种红色荧光化合物2、利用NMR、IR、MALDI-TOF-MS和元素分析对化合物的结构进行了表征，并对化合物C的单晶结构进行了解析。3、利用紫外-可见和荧光光谱研究了化合物的光学性质，利用TG-DTA分析了化合物的热稳定性，以循环伏安法研究了电化学性质并计算了化合物的前线轨道能级。4、以化合物C卟啉锌配合物为染料制备了电致发光器件，研究了其电致发光性质。器件发射峰位于556nm。更多还原

【Abstract】 Organic light-emitting diodes (OLEDs) have become an important research area due to their potential applications in flat panel displays. For full color display, the pure red, green and blue OLEDs with the high luminescent intensity have been extensively developed for recent years. So far, the blue and green OLED displays have made great progresses, especially in the commercial sense. However, red OLEDs with high performance still need to be improved.Oligomeric phenylene vinylenes (OPVs) as luminescent material have some unique photo-electric properties. In this thesis, the other functional elements were introduced into the OPV structure, which were expected as red emission materials without losing the property of OPV.The thesis consists of the following studies:1. To obtain the molecules with red emission, five target compounds were designed and synthesized.2. All target compounds were characterized by 1~H NMR、13~C NMR、IR、TOF-MS and element analysis. The structure of compound C is further determined by the X-ray diffraction of its single crystal.3. Optical properties (absorption and fluorescence) and thermal stabilities of all the target compounds were studied utilizing the spectra analysis and TGA, respectively. The energy levels of their frontier molecular orbitals were evaluated by the corresponding cyclic voltametric experiments.4. Fabrication using the zinc complex of compound C as a dopant resulted in an electroluminescent device with emission at 556 nm更多还原