双极性蒽中心十字交叉共轭分子的合成、溶液成膜及其电致发光性质

项目名称： 双极性蒽中心十字交叉共轭分子的合成、溶液成膜及其电致发光性质

项目编号： No.51303091

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 薛善锋

作者单位： 青岛科技大学

项目金额： 25万元

中文摘要： 易于纯化、高质量成膜性、高固态荧光性、有效强化与平衡载流子注入与传输性质的可溶液加工的共轭有机小分子是最具发展和应用潜力的有机电致发光材料。本申请项目结合中心十字交叉共轭分子的独特化学结构设计合成端基为电子给体咔唑和/或电子受体恶二唑的双极性2,6,9,10-四芳基乙烯蒽中心十字交叉共轭分子，构筑具有HOMO/LUMO空间分离和聚集强化固态荧光特性的新型可溶液加工小分子电致发光材料。这种新颖化学和电子结构材料，其设计合成和电致发光特性未见研究报道。本项目研究该类化合物LUMO/HOMO空间分离特性及其对电荷注入/传输的调控效应，研究二芳基乙烯蒽结构引起的聚集增强荧光性质，研究端基电子给体和/或受体键接位置变化对载流子迁移率与电致发光特性的影响及规律，开发性能优异的电致发光材料。本项目研究对新型电致发光材料的设计开发、丰富电致发光材料新体系具有重要价值。

中文关键词： 蒽中心有机小分子；旋涂器件；聚集增强发光；压致荧光变色；双光子吸收

英文摘要： Solution-processable small molecules with facile synthesis, favourable film-forming ability, high fluorescent efficiency and balanced carrier injection and transport property are most promissing materials in OLEDs. The proposer provides the design of novel solution-processable fluorecent cruciform small molecules with HOMO/LUMO spacially separated properties based on electron-rich and conjugated anthrene cores. On account of the chemical and electron structure of these conjugated molecules, this project designs and synthesizes the cross structure molecules with electron-donor/acceptor end groups and anthracene core. Furthermore, this project studies the LUMO/HOMO spatial separation characteristics and consequent effect of the charge injection/transport regulation. The aggregation-induced or enhanced fluorescence properties caused by diarylethene anthracene structure are also be researched. This Project meanwhile studies the change of electron-donor and/or acceptor binding position how to influence the light-emitting and carrier mobility. Because of the novel chemicial structures and electron structure, this kind of materials and their electroluminescent properties are rarely reported. This project is very meaningful to the design and development of novel electroluminescent light-emitting materials.

英文关键词： anthracen-center organic small molecule；spin-coatting device；“aggregation-induced emission；piezofluorochromism；Two-photon absorption