Organic host materials for phosphorescent organic light-emitting diodes

被引:1169
作者
Tao, Youtian [1 ]
Yang, Chuluo [1 ]
Qin, Jingui [1 ]
机构
[1] Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China
基金
中国国家自然科学基金;
关键词
ELECTRON-TRANSPORT MATERIALS; HIGHLY EFFICIENT GREEN; BLUE ELECTROPHOSPHORESCENT DEVICES; EXCITON-BLOCKING MATERIAL; BIPOLAR HOST; TRIPLET-ENERGY; IRIDIUM COMPLEX; PHOSPHINE-OXIDE; SINGLE-LAYER; QUANTUM EFFICIENCY;
D O I
10.1039/c0cs00160k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Phosphorescent organic light-emitting diodes (PhOLEDs) unfurl a bright future for the next generation of flat-panel displays and lighting sources due to their merit of high quantum efficiency compared with fluorescent OLEDs. This critical review focuses on small-molecular organic host materials as triplet guest emitters in PhOLEDs. At first, some typical hole and electron transport materials used in OLEDs are briefly introduced. Then the hole transport-type, electron transport-type, bipolar transport host materials and the pure-hydrocarbon compounds are comprehensively presented. The molecular design concept, molecular structures and physical properties such as triplet energy, HOMO/LUMO energy levels, thermal and morphological stabilities, and the applications of host materials in PhOLEDs are reviewed (152 references).
引用
收藏
页码:2943 / 2970
页数:28
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