摘要
Phosphorescent organic light-emitting diodes (PHOLEDs) show a bright future for flat-panel displays and solidstate 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.
源语言 | 英语 |
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页(从-至) | 9-22 |
页数 | 14 |
期刊 | Acta Chimica Sinica |
卷 | 73 |
期 | 1 |
DOI | |
出版状态 | 已出版 - 15 1月 2015 |
已对外发布 | 是 |