Recent Progress of Host Materials for Highly Efficient Blue Phosphorescent OLEDs

被引：31
|
作者：
Wang Fangfang [1 ,2 ]
Tao Youtian [1 ]
Huang Wei [1 ,2 ]
机构：
[1] Nanjing Tech Univ, Inst Adv Mat, Key Lab Flexible Elect, Nanjing 210009, Jiangsu, Peoples R China
[2] Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China
来源：
ACTA CHIMICA SINICA | 2015年 / 73卷 / 01期
基金：
中国国家自然科学基金;
关键词：
organic electroluminescence; phosphorescence; blue; external quantum efficiency; host; LIGHT-EMITTING-DIODES; HIGH QUANTUM EFFICIENCY; TRIPLET ENERGY; BIPOLAR HOST; IRIDIUM COMPLEXES; CN GROUP; CARBAZOLE; RED; GREEN; ELECTROPHOSPHORESCENCE;
D O I：
10.6023/A14100716
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：9 / 22
页数：14
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