Nitrogen heterocycle-containing materials for highly efficient phosphorescent OLEDs with low operating voltage
Nitrogen heterocycle-containing materials for highly efficient phosphorescent OLEDs with low operating voltage
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用于低工作电压高效磷光OLED的含氮杂环材料
DOI：
10.1039/c4tc01941e
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发表时间：
2014-01-01
影响因子：
6.4
通讯作者：
Cao, Yong
中科院分区：
文献类型：
--
作者：
Chen, Dongcheng;Su, Shi-Jian;Cao, Yong
自发现以来，磷光有机发光二极管（PHOLED）已经发展了十多年。为了提高PHOLED的电光转换效率，提高其外量子效率和降低其工作电压非常重要。主体材料、载流子传输材料、特别是电子传输材料等功能材料的改进对于实现这些目标起着最重要的作用。在这篇专题文章中，我们简要回顾了用于 PHOLED 的含氮杂环功能材料的最新进展。特别关注如何利用分子设计策略来实现高性能主体和电子传输材料的开发，以及如何使用这些含氮杂环材料来制造效率和工作电压达到理论极限的PHOLED。
Since their discovery, phosphorescent organic light-emitting diodes (PHOLEDs) have been developed for more than ten years. To improve the electricity-to-light conversion efficiency of PHOLEDs, it is of great importance to improve their external quantum efficiency and to decrease their operating voltage. The improvement of functional materials such as host materials and carrier transport materials, especially electron transport materials, plays the most important role in reaching these targets. In this feature article, we provide a brief review of the recent developments in nitrogen heterocycle-containing functional materials for PHOLEDs. Special attention is paid to the issue of how to utilise the molecular design strategy in achieving the development of high-performance host and electron transport materials and of how to use these nitrogen heterocycle-containing materials to create PHOLEDs with efficiencies and operating voltages that reach the theoretical limits.