Chin. J. Org. Chem. ›› 2019, Vol. 39 ›› Issue (2): 449-455.DOI: 10.6023/cjoc201807006 Previous Articles     Next Articles



叶中华a, 杨佳丽a, 凌志天a, 赵艺a, 陈果b, 郑燕琼b, 魏斌b, 施鹰a   

  1. a 上海大学材料科学与工程学院 上海 200072;
    b 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
  • 收稿日期:2018-07-03 修回日期:2018-09-03 发布日期:2018-09-26
  • 通讯作者: 魏斌, 施鹰;
  • 基金资助:


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

Ye Zhonghuaa, Yang Jialia, Ling Zhitiana, Zhao Yia, Chen Guob, Zheng Yanqiongb, Wei Binb, Shi Yinga   

  1. a School of Materials Science and Engineering, Shanghai University, Shanghai 200072;
    b Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai University, Shanghai 200072
  • Received:2018-07-03 Revised:2018-09-03 Published:2018-09-26
  • Contact: 10.6023/cjoc201807006;
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 51725505 and 61775130), the National Key Basic Research and Development Program of China (973 program, No. 2015CB655005) and the Science and Technology Committee of Shanghai City (No. 15590500500).

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.

Key words: indolocarbazole group, organic light-emitting diodes, host, bipolar, thermally activated delayed fluorescence