氟取代联蒽类双极性深蓝光材料的合成及光电性能研究

项目名称： 氟取代联蒽类双极性深蓝光材料的合成及光电性能研究

项目编号： No.61308093

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 李战锋

作者单位： 太原理工大学

项目金额： 25万元

中文摘要： 白色有机电致发光器件（WOLEDs）因其在显示和照明领域的潜在应用以及在降低全球能源消耗方面的重要作用，已经成为当前研究的热点。相对于绿光和红光材料，WOLEDs所必需的高性能蓝光材料的开发比较滞后，特别是作为蓝光主体存在单载流子传输的缺陷。因此本项目提出将氟取代有机材料独特的电荷传输特性和光电性能与蒽类材料优异的发光性能相结合，综合考虑分子的几何构型、取代基的电子效应和空间效应等因素，设计并合成出一类具有非给-受体结构的氟取代联蒽类材料，得到双极性电荷传输、发光性能和稳定性均优异的深蓝色发光材料，以制备出高效率和理想色纯度的深蓝色发光器件。并利用密度泛函理论计算和实验测试相结合的方法，系统研究该类材料的分子结构与发光性能、电荷传输性能以及稳定性之间的内在关系，揭示分子结构对材料性能的调控规律。本项目的研究对更好地开发氟取代有机材料在高性能WOLEDs中的应用具有重要的价值和现实意义。

中文关键词： 有机电致发光器件；双极性；氟代联蒽；深蓝光；色纯度

英文摘要： White organic light-emitting devices (WOLEDs) have received considerable interest due to their potential application in full color displays and solid-state lighting, and to saving a significant amount of energy. However, the highly stable and efficient blue materials always keep as one of the most challenging targets of WOLEDs research compared to red and green materials, and have thus become the bottleneck of commercialization of organic electroluminescent technology, especially the defect of single carrier transport in blue hosts. Fluorinated organic compounds may play a primary role as active materials in organic light-emitting devices because of their optoelectronic and charge transfer properties. Similarly, anthracene derivatives are important building blocks to construct blue luminescent dyes due to their merits such as outstanding photoluminescence and electroluminescence properties. This project proposes to combine the electron-withdrawing fluorine substituent and the attractive anthracene moiety, to discuss the electronic effects and space effects resulting from effects of substitute groups, and to design and synthesize a novel class of excellent bipolar deep-blue emitters based on fluorinated bianthracene derivatives, and to study systematically the effect of different fluorine groups on the thermal st

英文关键词： organic light-emitting devices；ambipolar；fluorinated bianthracene；deep blue；color purity