高效蓝光有机电致磷光主体材料的研究进展

doi:10.6023/A14100716

摘要/Abstract

磷光有机发光二极管(PHOLEDs)相对于传统的荧光有机电致发光具有更高的量子效率, 在平板显示和固态照明方面有极大的应用前景. 本工作将近几年来外量子效率高于20%的蓝光PHOLEDs中小分子主体材料进行总结, 并按空穴传输型、电子传输型和双极传输型主体材料分类, 重点介绍这些材料的分子结构、三线态能级、HOMO/LUMO能级、热稳定性、形态稳定性以及作为蓝光PHOLEDs主体材料的器件性能, 以期对主体材料的研究及OLED产业化提供参考价值.

关键词: 有机电致发光, 磷光, 蓝光, 外量子效率, 主体

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

引用此文

王芳芳, 陶友田, 黄维. 高效蓝光有机电致磷光主体材料的研究进展[J]. 化学学报, 2015, 73(1): 9-22.

Wang Fangfang, Tao Youtian, Huang Wei. Recent Progress of Host Materials for Highly Efficient Blue Phosphorescent OLEDs[J]. Acta Chimica Sinica, 2015, 73(1): 9-22.

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