9位芘和长链烷氧基苯取代的三联芴  

Terfluorene Deriviative with Pyrene and Long-chain Alkoxy Groups at C9 of Fluorene

作　　者：唐超[1] 陈淑芬[1] 凌启淡[1] 

机构地区：[1]南京邮电大学江苏省有机电子与信息显示重点实验室

出　　处：《南京邮电大学学报（自然科学版）》2008年第1期53-58,共6页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家自然科学基金(60325412,90406021,50428303,20404002);南京邮电大学攀登计划(NY206067)资助项目

摘　　要：采用Suzuki偶联反应制备了9位芘和长链烷氧基苯取代的三联芴ATF。热分析结果显示ATF具有良好的热稳定性,其热分解温度为430℃,玻璃化转变温度高达155℃。芘在芴9位的非共轭取代并没有改变共轭三联芴的高效率蓝光发射特点,但ATF的HOMO能级得以明显提高,这意味着空穴注入性能有明显的提高。ATF既可以采用真空蒸镀,又可以采用溶液旋涂的方法制备电致发光器件,旋涂器件(ITO/PEDOT∶PSS(40nm)/ATF(100nm)/Ba/Al)的启动电压为7V,最大外量子效率为0.62。The C9 pyrene and long-chain alkoxy groups substituted terfluorene （ATF） was synthesized according to Suzuki coupling reaction. Thermal analyses indicate that ATF has good thermal stability with high decomposition temperature （430℃ ） and high glass transition temperature （ 155℃）. The non-conjugated pyrene substitution at C9 of fluorene does not decrease the high efficiency of blue emission of the conjugated terfluorene. However, ATF has increased HOMO and improved hole-injection characteristics compared with standard terfluorenes. The OLEDs could be fabricated using ATF as the emitter by vacuum deposition or spin-coating technology. The spin-coating device of ITO/PEDOT：PSS（40 nm）/ATF （100 nm）/Ba/Al has turn-on voltage of 7 V, with the maximum external quantum efficiency of 0, 62.

关 键 词：芘取代三联芴 HOMO能级 蓝光材料 

分 类 号：O621.22[理学—有机化学] TN383.1[理学—化学]