期刊
CHEMICAL SOCIETY REVIEWS
卷 40, 期 5, 页码 2943-2970出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cs00160k
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资金
- National Natural Science Foundation of China [90922020, 50773057]
- National Basic Research Program of China [2009CB623602]
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).
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