Acta Chimica Sinica ›› 2015, Vol. 73 ›› Issue (1): 9-22.DOI: 10.6023/A14100716 Previous Articles     Next Articles



王芳芳a,b, 陶友田a, 黄维a,b   

  1. a 江苏省柔性电子重点实验室 南京工业大学先进材料研究院 南京 210009;
    b 内蒙古大学化学化工学院 呼和浩特 010021
  • 投稿日期:2014-10-16 发布日期:2014-11-28
  • 通讯作者: 陶友田, 黄维;
  • 基金资助:

    项目受青年973计划(No. 2014CB648300)、国家自然科学基金(No. 61474062)及江苏省自然科学基金青年项目(No. BK20130919)资助.

Recent Progress of Host Materials for Highly Efficient Blue Phosphorescent OLEDs

Wang Fangfanga,b, Tao Youtiana, Huang Weia,b   

  1. a Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, Nanjing 210009;
    b College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021
  • Received:2014-10-16 Published:2014-11-28
  • Supported by:

    Project supported by the Youth Project 973 (No. 2014CB648300), the National Natural Science Foundation of China (No. 61474062) and the Natural Science Foundation of Jiangsu Province Youth Project (No. BK20130919).

Phosphorescent organic light-emitting diodes (PHOLEDs) show a bright future for flat-panel displays and solid- state lighting due to higher quantum efficiencies compared with traditional fluorescent OLEDs. This review focuses on small-molecular organic host materials for blue PHOLEDs with external quantum efficiency higher than 20%. Hole transport-type, electron transport-type and bipolar transport hosts are introduced according to their charge transporting properties. Their molecular structures and physical properties such as triplet energy, HOMO/LUMO energy levels and thermal stabilities, as well as device performances of host materials for blue and deep-blue PHOLEDs are comprehensively demonstrated. It is expected to provide reference value for the exploitation of new organic host materials and the commercialization of OLEDs.

Key words: organic electroluminescence, phosphorescence, blue, external quantum efficiency, host