含有吲哚并咔唑基团的热激发延迟荧光双极性主体材料的设计、合成及应用  

Synthesis of Host Material Containing Indolocarbazole Group Featuring Bipolar and Thermally Activated Delayed Fluorecence and Its Application

作　　者：叶中华 杨佳丽 凌志天 赵艺 陈果[2] 郑燕琼 魏斌[2] 施鹰[1] Ye Zhonghua;Yang Jiali;Ling Zhitian;Zhao Yi;Chen Guo;Zheng Yanqiong;Wei Bin;Shi Ying(School of Materials Science and Engineering, Shanghai University, Shanghai 200072;Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai University, Shanghai 200072)

机构地区：[1]上海大学材料科学与工程学院,上海200072 [2]上海大学新型显示技术及应用集成教育部重点实验室,上海200072

出　　处：《有机化学》2019年第2期449-455,共7页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(No.1725505,61775130);国家重点基础研究发展计划(973计划,No.2015CB655005);上海市科委(No.15590500500)资助项目~~

摘　　要：设计合成了一种含吲哚并咔唑基团的有机电致发光主体材料10-苯基-10-(4-(7-苯基吲[2,3-b]咔唑-5(7H)-基)苯基)蒽-9-(10H)-酮(DphAn-5PhIdCz).通过核磁氢谱对其结构进行了表征,测试了它的紫外-可见吸收波长、荧光发射波长、荧光量子产率和瞬态荧光寿命等光物理性能,该材料具有双极性和热延迟荧光特性.通过将DphAn-5PhIdCz作为绿色发光体(ppy)2 Iracac的主体,制备了高效低滚降的磷光有机电致发光器件(PhOLED),其最大发光效率达到56.12 cd·A%-1,外量子效率15.70%,最大功率效率71.3 lm·W^-1.这些数据表明DphAn-5PhIdCz作为PhOLED主体材料在有机发光二极管(OLED)显示和照明具有较大的潜在应用价值.The novel host material containing indolocarbazole group, 10-phenyl-10-(4-(7-phenylindolo[2,3-b]carbazol-5(7H)-yl)phenyl)anthracen-9(10H)-one (DphAn-5PhIdCz), was designed and synthesized. The structures were characterized by NMR and their photophysical properties such as ultraviolet-visible absorption wavelength, fluorescence emission wavelength, fluorescence quantum yield, and transient fluorescence lifetime were measured. The DphAn-5PhIdCz was found to exhibit the characteritics of bipolar and thermally activated delayed fluorescence. By using this material as host of green emitter, (ppy)2 Iracac, high-efficiency and low roll-off phosphorescent organic light-emitting diode (PhOLED) was fabricated with the maximum current efficiency of 56.12 cd·A^-1, the maximum external quantum efficiency of 15.70% and the maximum power efficiency of 71.3 lm·W^-1. These make DphAn-5PhIdCz a promising host for high performance PhOLED displays and lighting applications.

关 键 词：吲哚并咔唑 有机发光二极管 主体材料 双极性 热激发延迟 

分 类 号：TN383.1[电子电信—物理电子学]